140-758: The IMSA SportsCar Championship , currently known as the IMSA WeatherTech SportsCar Championship under sponsorship, is a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA). It is a result of a merger between two existing North American sports car racing series, the American Le Mans Series and Rolex Sports Car Series . At its inception,
280-615: A back seat to GT cars with the FIA replacing the World Championship for Sports Cars with the International Championship for GT Manufacturers. In national rather than international racing, sports car competition in the 1950s and early 1960s tended to reflect what was locally popular, with the cars that were successful locally often influencing each nation's approach to competing on the international stage. In
420-524: A car with a similar powerplant (Peugeot 908). P2 cars can weigh much less — first 675 kg, then 750 kg and now 825 kg — but are restricted to 3400 cc V6 or V8 normally aspirated or 2000 cc turbocharged powerplants. In the European series in which endurance is a priority and P2s have been run largely by privateers, P2s have not challenged P1s for outright victories; in the American Le Mans Series with generally shorter races P2 has become
560-562: A cheaper, and even more successful Trumpf Junior model, which sold over 100,000 in August 1939, and in the same year Citroën introduced the very successful Traction Avant models in France, over time selling them in the hundred thousands. Hupmobile made 2 experimental models with front-wheel drive in 1932 and 1934, but neither came into production In the late 1930s, the Cord 810/812 of
700-587: A contest won by Louis Satterlee of Florida, a racer in the Florida Karting Championship Series. On August 9, 2013, Fox Sports 1 announced it had signed a TV contract with IMSA to televise the entire USCC season between 2014 and 2018. Later, on September 12, 2013, Tudor was announced as the title sponsor for the series, which was named the United SportsCar Championship. On August 8, 2015, WeatherTech
840-538: A crop of large-engined "big bangers" the technology of which largely gave rise to Can-Am but soon died out. Clubmans provided much entertainment at club-racing level from the 1960s into the 1990s and John Webb revived interest in big sports prototypes with Thundersports in the 1980s. There was even enough interest in Group C to sustain a C2 championship for a few years; at 'club' level Modified Sports Car ("ModSports") and Production Sports Car ("ProdSports") races remained
980-509: A feature of most British race meetings into the 1980s, evolving into a "Special GT" series that was essentially Formula Libre for sports or saloon cars. After a relative period of decline in the 1980s a British GT Championship emerged in the mid-90s. Italy found itself with both grassroots racing with a plethora of Fiat based specials (often termed "etceterinis") and small Alfa Romeos , and exotica such as Maserati and Ferrari – who also sold cars to domestic customers as well as racing on
1120-456: A flexibly located electronically controlled cooling fan. This configuration was pioneered by Dante Giacosa in the 1964 Autobianchi Primula and popularized with the Fiat 128 . Fiat promoted in its advertising that mechanical features consumed only 20% of the vehicle's volume and that Enzo Ferrari drove a 128 as his personal vehicle. The 1959 Mini used a substantially different arrangement with
1260-515: A franchise-like approval system in which only approved constructors are eligible, with rules stability enforced for several years at a time, although this led in 2007 to established constructors like Lola and Dallara entering the 2008 series by taking over the rights of existing constructors (Multimatic and Doran respectively). Grand Touring (from the Italian Gran Turismo ) racing is the most common form of sports car racing, and
1400-472: A front-engine mounted longitudinally, a mid-engine layout and a rear-engine layout. Experiments with front-wheel-drive cars date to the early days of the automobile. The world's first self-propelled vehicle, Nicolas-Joseph Cugnot 's 1769/1770 "fardier à vapeur" , was a front-wheel-driven three-wheeled steam-tractor. It then took at least a century for the first experiments with mobile internal combustion engines to gain traction. Sometime between 1895 and 1898
1540-456: A front-wheel-drive system for motorising horse-drawn carts. In 1899 the inventor Henry Sutton designed and built one of Australia's first cars, called The Sutton Autocar. This car may have been the first front-wheel-drive car in the world. Henry's car was reported in the English press at the time and featured in the English magazine Autocar , after which the car was named. Two prototypes of
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#17327809389131680-632: A high point in the history of the sport. In Europe, the FIA adopted the ACO GTP rules virtually unchanged and sanctioned the Group C World Endurance Championship (or World Sportscar Championship ), featuring high-tech closed-cockpit prototypes from Porsche, Aston Martin, Mercedes-Benz , Nissan , Jaguar and others. In the US, the IMSA Camel GTP series boasted close competition between huge fields of manufacturer-backed teams and privateer squads –
1820-399: A long Japanese tradition of such hybrids; a Grand Champion series ran for many years with rebodied Formula 2 and Formula 3000 cars, rather similar to the second incarnation of Can-Am ). In the US, however, road racing actually saw a decline. The IMSA GT Championship had been prototype-based since 1983, with less emphasis on production cars. NASCAR was becoming increasingly dominant, and
1960-441: A massive increase in grip and handling over all but the most expensive cars on the market. It initially used flexing rubber instead of needle rollers at the inboard universal joints of the driveshafts but later changed to needle rollers, and GKN designed constant-velocity joint at each outboard end of the drive shafts to allow for steering movement. The Mini revived the use of front-wheel drive which had been largely abandoned since
2100-703: A mechanic if necessary or permitted. Cars such as the Bugatti Type 35 were almost equally at home in Grands Prix and endurance events, but specialisation gradually started to differentiate the sports-racer from the Grand Prix car. The legendary Alfa Romeo Tipo A Monoposto started the evolution of the true single-seater in the early 1930s; the Grand Prix racer and its miniature voiturette offspring rapidly evolved into high performance single seaters optimised for relatively short races, by dropping fenders and
2240-471: A more powerful transverse engine: accordingly, faster versions featured longitudinally mounted (north–south) engines. Despite these developments, however, by the end of the 1980s, almost all major European and Japanese manufacturers had converged around the Fiat-pioneered system of a transversely mounted engine with an "end-on" transmission with unequal length driveshafts. For example, Renault dropped
2380-810: A number of GT series sprung up at national and European level, with the BPR series eventually evolving into the FIA GT Championship . IMSA GTP continued for a few more years but was replaced by a series for World Sports Cars – relatively simple open-top prototypes – which gave rise to cars such as the Ferrari 333SP and the Riley & Scott Mk 3, supported by GTs. As the 1990s progressed, these prototypes and others like them started to be raced in Europe and an FIA Sports Car series evolved for them. Since
2520-513: A race for touring cars ) and sports cars, whether descended from primarily road-going vehicles or developed from pure-bred racing cars came to dominate races such as Le Mans and the Mille Miglia . In open-road endurance races across Europe such as the Mille Miglia , Tour de France and Targa Florio , which were often run on dusty roads, the need for fenders and a mechanic or navigator was still there. As mainly Italian cars and races defined
2660-496: A result, some cars racing in the GT category did pass as true sports prototypes, in turn leading to some road-going versions for homologation purposes. The Dauer- Porsche 962 LM, Porsche 911 GT1 -98, Mercedes CLK-GTR and Toyota GT-One were prime examples of prototypes masquerading as GTs. In simplistic terms, sports prototypes are two-seat racing cars with bodywork covering their wheels, and are as technically advanced and, depending on
2800-452: A resurgence of interest in sports car racing in the US, with the network originally showing a large amount of sports car racing and sports car–related programming before being replaced by Fox Sports. The IMSA GT Series evolved into the American Le Mans Series ; the European races eventually became the closely related Le Mans Series , both of which mix prototypes and GTs; the FIA remains more interested in its own GT and GT3 championships, with
2940-570: A single race, such as in the 24 Hours of Le Mans . In mixed-class races, an overall winner is awarded, though individual class winners are often recognised as well. Sports prototype is the name given to a type of car used in sports car racing and is effectively the next automotive design and technological step-up from road-going sports cars and are, along with open-wheel cars, the pinnacle of racing car design. The highest level in sports car racing, these cars are purpose-built racing cars with enclosed wheels, and either open or closed cockpits. Ever since
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#17327809389133080-616: A support series for the Rolex Series, provides a similar series to the old Trans Am Series, mixing conventional sports cars and touring cars. Due to Grand Am's affiliation with NASCAR, many NASCAR drivers occasionally participate in the Rolex Sports Car Series. Max Papis is a notable example in that he was a road racer prior to his tenure in the Sprint Cup Series. Many of these drivers only participate in
3220-576: A transverse-mounted engine behind the front axle. This design would continue for 3 decades in Germany. Buckminster Fuller adopted rear-engine, front-wheel drive for his three Dymaxion Car prototypes. Other German car producers followed: Stoewer offered a car with front-wheel drive in 1931, Adler in 1932 and Audi in 1933. Versions of the Adler Trumpf sold five-figure numbers from 1932 to 1938, totalling over 25,600 units. In 1934, Adler added
3360-758: A transversely installed engine was the Suzuki Suzulight , which was a small "city" car, called a kei car in Japanese. In 1955, the Polish producer FSO in Warsaw introduced the front-wheel-driven Syrena of its own design. In 1959 Austin Mini was launched by the British Motor Corporation , designed by Alec Issigonis as a response to the first oil crisis, the 1956 Suez Crisis , and
3500-655: A vehicle to increase performance as a season progresses, DPs are restricted to their original conception of the car from the start of the season. For these reasons, the category being labeled as a "prototype" has occasionally been criticised as misleading and being more in line with traditional "spec" race series prevalent in the United States. The intention of the DP formula was to provide a class in which tight technical regulations encouraged close competition and where budget would be relatively unimportant. DP chassis are subject to
3640-540: A water cooled 3.5 horsepower (2.6 kW) Aster engine. The engine was mounted on the front axle and so was rotated by the tiller steering. The name Victoria Combination described the lightweight, two-seater trailer commonly known as a Victoria, combined with the rear axle and drive mechanism from a motor tricycle that was placed in front to achieve front wheel drive. It also known as the Eureka . By 1899 Victoria Combinations were participating in motoring events such as
3780-467: Is an example of one of the best known sports car racing series. A type of hybrid between the purism of open-wheelers and the familiarity of touring car racing, this style is often best associated with the annual 24 Hours of Le Mans endurance race. First run in 1923, Le Mans is one of the oldest motor races still in existence. Other classic but now defunct sports car races include the Italian classics,
3920-401: Is built in part upon success in sports car racing. These makers' top road cars have often been very similar both in engineering and styling to those raced. This close association with the 'exotic' nature of the cars serves as a useful distinction between sports car racing and touring cars. The 12 Hours of Sebring , 24 Hours of Daytona , and 24 Hours of Le Mans have in the past been considered
4060-403: Is found all over the world, in both international and national series. Historically, Grand Touring cars had to be in series production, but in 1976 the class was split into production-based Group 4 Grand Touring Cars and Group 5 Special Production Cars , the latter of which were essentially pure-bred racing cars with production-lookalike bodies. GT racing gradually fell into abeyance in Europe in
4200-491: Is near the centre of the car, making the main component of its moment of inertia relatively low). Another result of this design is a lengthened chassis. Except for Citroën, after the 1930s, front-wheel drive would largely be abandoned for the following twenty years. Save the interruption of World War II , Citroën built some 3 ⁄ 4 million Traction Avants through 1957; adding their cheap 2CV people's car in 1948, and introducing an equally front-wheel driven successor for
4340-498: Is one of the main types of circuit auto racing , alongside open-wheel racing (such as Formula One , IndyCar Series and Super Formula Championship ), touring car racing (such as the British Touring Car Championship , which is based on 'saloon cars' as opposed to the 'exotics' seen in sports cars. Supercars Championship , is an Production Touring Car Racing specs consists with 5-litre V8 Engine and
IMSA SportsCar Championship - Misplaced Pages Continue
4480-575: The ACO regulations, two categories of sports prototypes are now recognised: P1 and P2. Cars competing in the P1 category must weigh no less than 900 kg and are limited to 6000 cc naturally aspirated and 4000 cc turbocharged engines. 5500 cc turbo- Diesel engines are also permitted in P1 ;– Audi scored Le Mans victories with such a car in 2006, 2007 and 2008 and Peugeot returned to racing in 2007 with
4620-475: The British Motor Corporation – moved over to the industry-standard solution for the Austin Maestro in 1983, and all its subsequent front-wheel-drive models. By reducing drivetrain weight and space needs, vehicles could be made smaller and more efficient without sacrificing acceleration. Integrating the powertrain with a transverse as opposed to a longitudinal layout, along with unibody construction and
4760-612: The Cadillac lineup) back to rear-wheel drive. There were relatively few rear-wheel-drive cars marketed in North America by the early 1990s; Chrysler 's car line-up was entirely front-wheel drive by 1990. GM followed suit in 1996 where its B-body line was phased out, where its sports cars (Camaro, Firebird, Corvette) were the only RWDs marketed; by the early 2000s, the Chevrolet Corvette and Cadillac Catera were
4900-492: The Douvrin engines used in the larger Renaults (20, 21, 25 and 30) used this longitudinal "forward" layout. The Saab Saab 99 , launched in 1968, also used a longitudinal engine with a transmission underneath with helical gears. The 1966 Oldsmobile Toronado was the first U.S. front-wheel-drive car since the Cord 810 . It used a longitudinal engine placement for its V8, coupled with an unusual "split" transmission, which turned
5040-578: The Fiat 128 featured a transverse-mounted engine with unequal-length drive shafts and an innovative clutch release mechanism – an arrangement which Fiat had strategically tested on a previous production model, the Primula , from its less market-critical subsidiary, Autobianchi . Ready for production in 1964, the Primula featured a gear train offset from the differential and final drive with unequal length drive shafts . The layout enabled
5180-617: The Great Depression , by 1932 the Cord L-29 was discontinued, with just 4,400 sold. The 1929 Ruxton sold just 200 cars built that year. The first successful consumer application came in 1929. The BSA (Birmingham Small Arms Company) produced the unique front-wheel-drive BSA three-wheeler. Production continued until 1936 during which time sports and touring models were available. In 1931 the DKW F1 from Germany made its debut, with
5320-620: The Prince Motor Company also developed a transmission-in-sump type layout for its first front wheel drive model, which after the company's takeover by Nissan , emerged as the Datsun 100A (Cherry) in 1971. In 1960 Lancia could evolve the project CemsaF11 of Antonio Fessia with the innovative Lancia Flavia for first time with motor Boxer on auxiliary frame for low centre of gravity. This scheme continued in Lancia until 1984 with
5460-957: The Targa Florio (1906–1977) and Mille Miglia (1927–1957), and the Mexican Carrera Panamericana (1950–1954). Most top-class sports car races emphasise endurance (generally between 6 and 24 hours), reliability, and strategy, over pure speed. Longer races usually involve complex pit strategy and regular driver changes. As a result, sports car racing is seen more as a team endeavour than an individual sport, with team managers such as John Wyer , Tom Walkinshaw , driver-turned-constructor Henri Pescarolo , Peter Sauber and Reinhold Joest becoming almost as famous as some of their drivers. The prestige of storied marques such as Porsche , Audi , Chevrolet , Ferrari , Jaguar , Bentley , Aston Martin , Lotus , Maserati , Lamborghini , Alfa Romeo , Lancia , Mercedes-Benz , and BMW
5600-596: The Targa Florio and as they grew bigger (via the Porsche 910 to the Porsche 908 and finally the Porsche 917 ) the Stuttgart marque became first a competitor for overall wins and then came to dominate sports car racing – both they and Mercedes have made intermittent returns to the top level of the sport through the 1970s, 80s, 90s and 2010s. Sports car racing has intermittently been popular in Japan ;– in
5740-458: The Taunus P4 . The 1965 Triumph 1300 was designed for a longitudinal engine with the transmission underneath. Audi has also used a longitudinally mounted engine overhung over the front wheels since the 1970s. Audi is one of the few manufacturers which still uses this particular configuration. It allows the use of equal-length half shafts and the easy addition of all-wheel drive , but has
IMSA SportsCar Championship - Misplaced Pages Continue
5880-839: The Tracta constant-velocity joint in 1926. In October 1928 a sensation at the 22nd Paris Motor Show was the Bucciali TAV-6. Six years before the appearance of the Citroën Traction Avant and more than two years before the launch of the DKW F1, the Bucciali TAV-6 featured front-wheel drive. Both German makers DKW in 1931 and Adler in 1933 bought Tracta licenses for their first front-wheel-drive cars. Imperia in Belgium and Rosengart in France manufactured
6020-559: The Triple Crown of endurance car racing . And also the additional of Bathurst 12 Hour , Spa 24 Hours , Nürburgring 24 Hours and Suzuka 1000km are considered the Crown Jewel of Endurance race. According to historian Richard Hough , "It is obviously impossible to distinguish between the designers of sports cars and Grand Prix machines during the pre-1914 period. The late Georges Faroux contended that sports-car racing
6160-643: The United SportsCar Championship after the merger and is somewhat comparable to the old Trans Am Series . There are four classes in the IMSA SportsCar Championship series, featuring two sports prototype categories and two grand tourer classes. Some races may only use selected classes of cars, for example: Any class car may be permitted entry at Daytona , while at the Northeast Grand Prix only
6300-482: The World Sportscar Championship was conceived, there have been various regulations regarding bodywork, engine style and size, tyres and aerodynamics to which these cars must be built. Sports prototypes may be (and often are) one-of-a-kind machines, and need bear no relation to any road-going vehicle, although during the 1990s, some manufacturers exploited a loophole in the FIA and ACO rules. As
6440-443: The 1930s. The transversely mounted engine combined with front-wheel drive was popularized by the 1959 Mini ; there the transmission was built into the sump of the engine, and drive was transferred to it via a set of primary gears . Another variant transmission concept was used by Simca in the 1960s keeping the engine and transmission in line, but transverse mounted and with unequal length driveshafts. This has proven itself to be
6580-596: The 1948 Saab 92 . In 1946, English car company Lloyd cars produced the Lloyd 650 , a front-wheel-drive roadster. The two-stroke, two-cylinder motor was mounted transversely in the front and connected to the front wheels through a four-speed synchronised gearbox. The high price and lacklustre performance doomed its production. Only 600 units were produced from 1946 to 1950. In 1946 in Italy, Antonio Fessia created his Cemsa Caproni F11 , with 7 examples produced. His innovation
6720-403: The 1950s, sports car racing was regarded as almost as important as Grand Prix competition, with major marques like Ferrari , Maserati , Jaguar and Aston Martin investing much effort in their works programmes and supplying cars to customers; sports racers lost their close relationship to road-going sports cars in the 1950s and the major races were contested by dedicated competition cars such as
6860-515: The 1960s and 1970s. In Britain 2-litre sports cars were initially popular (the Bristol engine being readily available and cheap), subsequently 1100 cc sports racers became a very popular category for young drivers (effectively supplanting 500 cc F3), with Lola , Lotus , Cooper and others being very competitive, although at the other end of the scale in the early to mid-1960s the national sports racing scene also attracted sophisticated GTs and later
7000-424: The 1960s progressed, with worldwide battles between Ferrari, Ford, Porsche, Lotus, Alfa Romeo and Matra as well as other more specialist marques running on into the early 1970s. The competition at Le Mans even made it to the movie screens, with Steve McQueen 's film Le Mans . This era was seen by many as the highpoint of sports car racing, with the technology and performance of the cars comfortably in excess of what
7140-596: The 1960s small-capacity sports racers and even a local version of the Group 7 cars as raced in the Canadian-American Challenge Cup were popular; a healthy local sports prototype championship ran until the early 1990s and now the Super GT series provides high-budget exposure to manufacturers, with many international drivers appearing. The Japanese manufacturers have also been frequent visitors to
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#17327809389137280-634: The 1980s and 1990s, with silhouette cars continuing to race in IMSA races in the USA. When GT racing revived after the collapse of the World Sports Car Championship at the end of 1992, the lead in defining rules was taken by the ACO. Under the ACO rules, Grand Touring cars are divided into two categories, Grand Touring 1 (GT1, formerly GT) and Grand Touring 2 (GT2, formerly N-GT). As the name of
7420-420: The 1986 Ford Taurus . By the mid-1980s, most formerly rear-wheel-drive Japanese models were front-wheel drive, and by the mid-1990s, most American brands only sold a handful of rear-wheel-drive models. The vast majority of front-wheel-drive vehicles today use a transversely mounted engine with "end-on" mounted transmission, driving the front wheels via driveshafts linked via constant velocity (CV) joints , and
7560-714: The 2017 Le Mans Prototype LMP2 cars. Previously, the DPi's had competed against their base LMP2 counterparts in the Prototype class from 2017 to 2018. Starting in 2019 the LMP2 cars were split into a separate class. The Prototype class had originally consisted of Grand-Am 's Daytona Prototypes with the American Le Mans Series LMP2 prototypes , and the DeltaWing , before the original Daytona Prototypes, and
7700-694: The 24 Hours of Daytona. The original Trans-Am Series dissolved in 2006, but returned to action in 2009 with tube frame TA1 and TA2 divisions racing with production-based TA3-American and TA3-International divisions. In addition, the SCCA continues to provide a major support series for Trans-Am. This series, known as the SCCA World Challenge , consists of a one-hour race for each round, combining three classes: GT ( Chevrolet Corvette , Aston Martin DB9 , etc.), "GTS" ( Acura TSX , BMW 3 Series , etc.; replaced
7840-551: The 371 km (231 mi) Paris– St Malo race, finishing 23rd overall and second(last) in the class. In October a Victoria Combination won its class in the Paris-Rambouillet-Paris event, covering the 100-kilometre course at 26 km/h (16 mph). In 1900 it completed 240 kilometres (150 mi) non-stop at 29 km/h (18 mph). When production ceased in mid-1901, over 400 units had been sold for 3,000 Francs (circa $ 600) each. A different concept
7980-514: The ACO & FIA to come together to create the FIA World Endurance Championship (WEC) starting in 2012. This new series replaced the ILMC and was a spiritual successor to the former FIA World Sportscar Championship. In 2012, the Rolex Sports Car Series overhauled its Daytona Prototype class, allowing for production-based designs. The ALMS's new LMP/LMC format, however, has not held up. The prototype classes split again in 2011, with LMP1 having three cars and LMP2 having one. A new "GT Pro Am" class
8120-404: The ACO split GT2 into two categories, GTE-Pro (for all-professional teams with current-spec cars) and GTE-Am (for teams with one amateur and one professional per car using previous-spec cars), as a way to entice rookies to enter one of the three Le Mans Series. Front-wheel drive Front-wheel drive ( FWD ) is a form of engine and transmission layout used in motor vehicles, in which
8260-424: The ACO's rules the basis for the LMS and ALMS. The Le Mans Prototype is somewhat reminiscent of the old Can Am prototype. Further splits in the American scene saw the Grand American Road Racing Association form a separate series, the Rolex Sports Car Series , with its own GT and prototype rules aimed at providing cheaper, lower-cost racing for independent teams. Grand Am's Continental Tire Sports Car Challenge ,
8400-410: The Adler under the licenses using the Tracta CV joints. During the second World War, all British vehicles, U.S. Jeeps made by Ford and Dodge command cars used Tracta CV joints. Russia and Germany also used the Tracta CV joints, but without the licensing. The United States only saw a few limited production experiments like the Cord L-29 of 1929, the first American front-wheel-drive car to be offered to
8540-439: The Austrian brothers and bicycle producers Franz, Heinrich and Karl Gräf (see Gräf & Stift ) commissioned the technician Josef Kainz to build a voiturette with a one-cylinder De Dion-Bouton engine fitted in the front of the vehicle, powering the front axle . It is possibly the world's first front-wheel-drive automobile, but it never saw series production, with just one prototype made. In 1898, Latil , in France, devised
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#17327809389138680-493: The Autocar were built and the Austral Otis Company was going to go into business with Henry to manufacture Henry's car but the cost of the car was too prohibitive as it could not compete with the cost of imported cars. In 1898–99, the French manufacturer Société Parisienne patented their front-wheel-drive articulated vehicle concept which they manufactured as a Victoria Combination . It was variously powered by 1.75 or 2.5 horsepower (1.30 or 1.86 kW) De Dion-Bouton engine or
8820-411: The Chateau Élan Hotel and Conference Center at Sebring International Raceway , two days before the 12 Hours of Sebring . American Le Mans CEO Scott Atherton announced the new sanctioning body would remain IMSA while Ed Bennett revealed the new titles for the series' five classes. SME Branding Senior Partner Ed O'Hara then announced the new United SportsCar Racing title and logo, a name submitted through
8960-458: The Continental Challenge's Grand Sport class, promoting its other touring car class to "GTS". This came after several years of the old TC class being an Acura-BMW- Mazda affair. For 2012, the series adopted a "B-spec" touring car class comparable to that of the Continental Challenge's Street Tuner class. 2010 also saw the introduction of the Intercontinental Le Mans Cup (ILMC) by the ACO, featuring events in America, Asia and Europe. This in turn led
9100-425: The DPi class (2019–2022), it features pro-am driver lineups. The class features cars built by Automobile Club de l'Ouest 's (ACO) 4 licensed manufacturers ( Riley - Multimatic , Ligier , Oreca and Dallara ) to the specifications of the FIA /ACO 2017 Global LMP2 regulations. A class that utilizes the FIA GT3 specifications that replaced the GTLM class starting in the 2022 Season. No driver class restriction in
9240-416: The Daytona oval and prohibitively expensive for smaller teams to run. Compared to the LMPs, DPs are severely limited in terms of approved technology; for instance, they are required to be constructed of steel tube frames with carbon-fibre skins, rather than being carbon-fibre monocoques, and must use production-based engines. In addition, contrary to their European counterparts who continuously alter and develop
9380-529: The DeltaWing were phased out of competition at the end of 2016, and replaced by the new DPi cars. Starting in 2023, the DPi class was replaced by the Grand Touring Prototype ( GTP ) class in an effort to further improve the racing in the Prototype class, as well as create a closer bond to the FIA World Endurance Championship . The former flagship class of the championship from 2014 to 2018 before splitting into two separate classes in 2019, featuring cars built to which included classes of prototypes carried over from
9520-508: The French car industry switched from making large powerful cars to small utilitarian ones, French sports cars of the 1950s and early 1960s tended to be small-capacity and highly aerodynamic (often based on Panhard or Renault components), aimed at winning the "Index of Performance" at Le Mans and Reims and triumphing in handicap races. Between the late 1960s and late 1970s, Matra and Renault made significant and successful efforts to win at Le Mans. In Germany, domestic production based racing
9660-475: The GT Daytona Pro (GTD Pro) and GT Daytona (GTD) are entered. Grand Touring Prototype (GTP) and Le Mans Prototype 2 (LMP2) classes are compatible with regulations for the 24 Hours of Le Mans . The flagship class of the championship that replaced the DPi (Daytona Prototype International) class starting in 2023, featuring cars built to IMSA's LMDh and Automobile Club de l'Ouest 's Le Mans Hypercar regulations. A class introduced since 2019 after being split from
9800-524: The GTD Pro class. A class since 2016 that uses same specification cars as GTD Pro, but at least 1 silver or bronze driver must be in a team. And more than 1 platinum driver in a team is prohibited. There were five classes formerly used in the IMSA SportsCar Championship series, featuring four sports prototype categories and one grand tourer class. The former flagship class of the championship from 2019 to 2022, featuring cars built to IMSA's Daytona Prototype International regulations, which are based upon
9940-433: The IMSA WeatherTech SportsCar Championship, this class of prototypes features cars built according to ACO's 2020 LMP3 Generation II ruleset specifications from manufacturers such as Ligier , ADESS , Ginetta & Duqueine Engineering. The class was removed after the 2023 season due to the growth in grid sizes. A continuation of the ALMS GT class, it consisted of cars matching the ACO's GTE specification and competed in
10080-623: The IndyCar Series' split from CART in 1996 put more emphasis on ovals regarding domestic open-wheel racing. Also contributing to the decline was the retirement of Mario Andretti from Formula One. It would be over a decade before another American driver would join Formula One, viz. Scott Speed , although Speed was ultimately unsuccessful and eventually joined NASCAR himself. The debut of the SpeedVision television network brought
10220-613: The Jaguar C and D types, the Mercedes 300SLR, Maserati 300S, Aston Martin DBR1 and assorted Ferraris including the first Testa Rossas. Top Grand Prix drivers also competed regularly in sports car racing. After major accidents at the 1955 24 Hours of Le Mans and the 1957 Mille Miglia the power of sports cars was curbed with a 3-litre engine capacity limit applied to them in the World Championship from 1958. From 1962 sports cars temporarily took
10360-527: The NASCAR-owned Grand Am series. The ALMS has now introduced "GTE-PRO" and "GTE-AM" for endurance races. In 2014, American Le Mans Series and Rolex Sports Car Series were merged into United SportsCar Championship , with IMSA as its sanctioning body. Fox Sports 1 (successor of Speed Channel) was returned as main broadcaster of the unified series. Daytona Prototype was replaced in 2017 by Daytona Prototype International (DPi), which based on
10500-587: The SCCA's World Challenge, and failing to garner a television contract. A major factor in this is the fact that Trans Am's teams still use vehicles dating back to 1999. In most other series, teams tended to update their vehicles every few years or so (examples include the 2005 vs. 2010 Mustangs in the Continental Challenge and the two different generations of Mazda RX-8 in the Rolex Series). Other television changes include Speed Channel losing
10640-891: The Sydney motoring industry and invented a system that used a "spherical radial gear" that was fitted to what is believed to have been a Standard (built by the Standard Motor Company of England). A photo of the car with the system fitted is available from the Mitchell Library and the patent design drawing is still available from the Australian Patent Office. reference; "Gilltraps Australian Cars from 1879 – A history of cars built in Australia" (authors Gilltrap T and M) ISBN 0 85558 936 1 (Golden Press Pty Ltd) The next application of front-wheel drive
10780-520: The TA, the DS model, in 1955. Front-wheel drive continued with the 1948 Citroën 2CV , where the air-cooled lightweight aluminium flat twin engine was mounted ahead of the front wheels, but used Hooke type universal joint driveshaft joints, and 1955 Citroën DS , featuring the mid-engine layout. Panhard of France, DKW of Germany and Saab of Sweden offered exclusively front-wheel-drive cars, starting with
10920-535: The US sports car scene ( Nissan and Toyota in particular during the heyday of IMSA) and to the European scene, in particular Le Mans, where despite many years of trying by all the main Japanese marques the only victory to have been scored by a Japanese marque was by Mazda in 1991, until 2018 when Toyota scored a first and second-place finish. Toyota followed this with another 1-2 finish in 2019. Powerful prototypes (effectively pure-bred two-seater racing cars with no real link to production vehicles) started to appear as
11060-426: The US, imported Italian, German and British cars battled local hybrids, with initially very distinct East and West Coast scenes; these gradually converged and a number of classic races and important teams emerged including Camoradi , Briggs Cunningham and so on. The US scene tended to feature small MG and Porsche cars in the smaller classes, and imported Jaguar, Maserati, Mercedes-Benz, Allard and Ferrari cars in
11200-549: The United States managed a bit better than its predecessor one decade earlier. These vehicles featured a layout that places the engine behind the transmission, running "backwards," (save for the Cord, which drove the transmission from the front of the engine). The basic front-wheel-drive layout provides sharp turning, and better weight distribution creates "positive handling characteristics" due to its low polar inertia and relatively favourable weight distribution. (The heaviest component
11340-557: The United States, and even competed in the 1906 Vanderbilt Cup and the French Grand Prix . In 1912 he began manufacturing a line of wheeled fire engine tractors which used his front-wheel-drive system, but due to lack of sales this venture failed. In Australia in 1915 G.J. Hoskins designed and was granted a patent for his front-wheel-drive system. Based in Burwood NSW Mr Hoskins was a prominent member of
11480-429: The boom in bubble cars that followed. It was the first production front-wheel-drive car with a watercooled inline four-cylinder engine mounted transversely. This allowed eighty percent of the floor plan for the use of passengers and luggage. The majority of modern cars use this configuration. Its progressive rate rubber sprung independent suspension, low centre of gravity, and wheel at each corner with radial tyres, gave
11620-691: The cable home to the series. Originally based on a Canadian series before being acquired by Grand-Am, the Continental Tire Sports Car Challenge (originally known as Grand-Am Cup) is a production-based touring car series. The series is split into two classes known as Grand Sport (GS), intended for large capacity GT-style cars, and Street Tuner (ST), consisting of smaller sedans and coupes, some of which are front-wheel drive . The IMSA Continental Tire Sports Car Challenge until 2013 supported some Rolex Series races but also headlined some of its own dates. This series continued with
11760-405: The cars were technically similar to Group Cs but used a sliding scale of weights and engine capacities to try to limit performance. Both Group C and GTP had secondary categories, respectively Group C2 and Camel Lights, for less powerful cars, targeting entries by small specialist constructors or serious amateur teams. The FIA attempted to make Group C into a virtual "two seater Grand Prix" format in
11900-548: The cars were to switch to Grand-Am's Continental Tires . The GT class of the American Le Mans Series would remain unchanged, while Grand-Am's GT class will form another GT class, and be combined with the American Le Mans GTC category. The only category of cars not represented in the new series is the American Le Mans Series' P1 category. The reveal date for the new series was March 14, 2013 at
12040-505: The class implies, the exterior of the car closely resembles that of the production version, while the internal fittings may differ greatly. GT2 cars are very similar to the FIA GT2 classification, and are considered 'pure' GT cars; that is production exotic cars with relatively few internal modifications for racing. The Porsche 911 is currently the most popular car in the GT2 class. 2009 will be
12180-482: The demise of Group C (where Japan and Germany both had successful series of their own) Japan has largely gone its own way in sports car racing; the Super GT series is for very highly modified production-based cars; although prototypes are slowly returning to Japanese racing in the Japan Le Mans Challenge many of these 'prototypes' are little more than rebodied Formula 3 cars (although there has been
12320-442: The disadvantage that it makes it difficult to achieve 50/50 weight distribution (although they remedy this in four-wheel-drive models by mounting the gearbox at the rear of the transaxle ). The Subaru 1000 appeared in 1966 using front-wheel drive mated to a flat-4 engine, with the driveshafts of equal length extending from the transmission, which addressed some of the issues of the powertrain being somewhat complex and unbalanced in
12460-555: The early 1990s, with engine rules in common with F1, short race distances, and a schedule dovetailing with that of the F1 rounds. This drove up costs and drove away entrants and crowds, and by 1993 prototype racing was dead in Europe, with the Peugeot , Jaguar, Toyota and Mercedes-Benz teams all having withdrawn. In an attempt to provide a top-class endurance racing series to replace the WSPC,
12600-557: The end production of Lancia Gamma and successfully cloned until today by Subaru . Lancia, however also made front-wheel drive its flagship even in sport cars as the winner of the Rally, Lancia Fulvia , and then with large-scale models with excellent road qualities and performances including Lancia Beta , Lancia Delta , Lancia Thema including the powerful Lancia Thema 8.32 with engine Ferrari and all subsequent models. Ford introduced front-wheel drive to its European customers in 1962 with
12740-439: The engine and gearbox to be located side by side without sharing lubricating fluid while orienting the cooling fan toward fresh air flow. By using the Primula as a test-bed, Fiat was able to sufficiently resolve the layout's disadvantages, including uneven side-to-side power transmission, uneven tire wear and potential torque steer , the tendency for the power of the engine alone to steer the car under heavy acceleration. The problem
12880-807: The engine compartment – the Alfa Romeo Alfasud (and its replacement, the 1983 Alfa 33 as well as the Alfa 145/146 up to the late 1990s) also used the same layout. Honda also introduced several small front-wheel drive vehicles, with the N360 and N600 , the Z360 and Z600 in 1967, the Honda 1300 in 1969, followed by the Honda Civic in 1972 and the Honda Accord in 1976. Also in the 1970s and 1980s,
13020-466: The engine drives the front wheels only. Most modern front-wheel-drive vehicles feature a transverse engine , rather than the conventional longitudinal engine arrangement generally found in rear-wheel-drive and four-wheel-drive vehicles. By far the most common layout for a front-wheel-drive car is with the engine and transmission at the front of the car, mounted transversely. Other layouts of front-wheel drive that have been occasionally produced are
13160-412: The engine driving the front wheels through an offset final drive and unequal-length driveshafts, combined with MacPherson struts and an independently located radiator – subsequently became common with competitors and arguably an industry standard. The Corporate Average Fuel Economy standard drove a mass changeover of cars in the U.S. to front-wheel drive. The change began in 1978, with
13300-517: The engine power 180 degrees. Power then went to a differential mounted to the transmission case, from which half-shafts took it to the wheels. The driveline was set fairly at centre-point of the wheels for better weight distribution, though this raised the engine, requiring lowered intake systems. Little known outside of Italy, the Primula is today primarily known for innovating the modern economy-car layout. – Hemmings Motor News , August 2011 Front-wheel-drive layout had been highly impacted by
13440-533: The engine. The layout often required the engine be removed to service the clutch. This Active Tourer MPV wants to be more stable than a BMW M3, and using the Dante Giacosa-pattern front-wheel-drive layout compacts the mechanicals and saves space for people in the reduced overall length of what will surely become a production 1-series tall-sedan crossover. – Robert Cumberford , Automobile Magazine , March 2013 As engineered by Dante Giacosa ,
13580-411: The fastest touring car racing in the world) and stock car racing (such as NASCAR ). Sports car races are often, though not always, endurance races that are run over particularly long distances or large amounts of time, resulting in a larger emphasis on the reliability and efficiency of the car and its drivers as opposed to outright car performance or driver skills. The FIA World Endurance Championship
13720-479: The following season in 2019. This was a one-make spec class in which all cars that drivers and teams used were Oreca FLM09 LMPC's powered by 6.2L Chevrolet V8 engines which made 430 hp each. This class would be used from the 2014 season until the end of the 2017 season. Introduced in the 2021 season, having been in the IMSA Prototype Challenge category as one of the feeder series to
13860-399: The former touring car class), and Touring Car (a "showroom stock" class similar to Grand Am's Continental Challenge). The Trans Am series returned in 2009, but has yet to establish a television contract. The 2010s have seen a major overhaul of sports car racing in the United States. The Pirelli World Challenge reformatted in 2010 to have a showroom stock touring car group comparable to that of
14000-438: The four ACO homologated LMP2 chassis made by Dallara , Onroak (Ligier) , Oreca , and Riley - Multimatic , with brand bodywork and homologated engines. Manufacturers are asked to partner with a privateer team, and each car will sport manufacturer bodywork, corresponding to their brand-identity. These rules are made to both control costs and attract manufacturers to the series. In 2018, SRO Motorsports Group has taken over
14140-402: The front axles of almost every four-wheel or all-wheel drive vehicle. Neither automobile was particularly successful in the open market. In spite of the Cord's hallmark innovation, using CV joints, and being competitively priced against contemporaneous alternatives, the buyers demographic were expecting more than the car's 80 mph (130 km/h) top speed, and combined with the effect of
14280-514: The genre, the category came to be known as Gran Turismo (particularly in the 1950s), as long distances had to be travelled, rather than running around on short circuits only. Reliability and some basic comfort were necessary in order to endure the task. After the Second World War , sports car racing emerged as a distinct form of racing with its own classic races, and, from 1953, its own FIA sanctioned World Sportscar Championship . In
14420-493: The introduction of the first American-built transverse-engined cars, the Plymouth Horizon and Dodge Omni (based on the European designed Simca Horizon ), followed by the 1980 Chevrolet Citation and numerous other vehicles. Meanwhile, European car makers, that had moved to front-wheel drive decades before, began to homogenize their engine arrangement only in this decade, leaving Saab , Audi (and Volkswagen ) as
14560-530: The larger classes. A breed of powerful hybrids appeared in the 50s and 60s and raced on both sides of the Atlantic, featuring European chassis and large American engines – from the early Allard cars via hybrids such as Lotus 19s fitted with large engines through to the AC Cobra . The combination of mostly British chassis and American V8 engines gave rise to the popular and spectacular Can-Am series in
14700-450: The last run of the GT1 class as a result of budgeting issues. GT1 teams are currently enlisting to run their cars in the GT2 class next year. The American Le Mans Series also runs a "GT-Challenge" class, which currently only uses Porsche 911 GT3 Cups but will open to other cars next year. This category is designed for privateer and rookie teams as an easier way to enter the series. For 2011,
14840-482: The management of Pirelli World Challenge , with USAC as its sanctioning body since 2017. Beginning in 2019, NBC Sports will be replacing Fox Sports as main broadcaster of WeatherTech SportsCar Championship with six-year broadcasting rights. There are many kinds of sports cars that compete, but they can be broadly broken down into two main categories: Sports prototypes and Grand Touring (GT) cars. These two categories (or "classes") are often mixed together in
14980-527: The model on which almost all modern FWD vehicles are now based. Peugeot and Renault on their jointly developed small car engine of the 1970s where the 4-cylinder block was canted over to reduce the overall height of the engine with the transmission mounted on the side of the crankcase in what became popularly known as the "suitcase" arrangement ( PSA X engine ). The tendency of this layout to generate unwanted transmission "whine" has seen it fall out of favour. Also, clutch changes required engine removal. In Japan,
15120-798: The most active prototype category with serious involvement from Porsche and Acura and whereas P2 in Europe tends to involve races of attrition, in the US series the P2s, particularly the Porsche RS Spyder are often quicker round a lap than P1s, with the Porsche having scored many overall victories against the Audis in P1. Prototype rules for 2010 and beyond will encourage production-based engines (GT1 engines in LMP1, GT2 engines in LMP2) and rules to equalise
15260-586: The name was United SportsCar Championship , which subsequently changed to IMSA SportsCar Championship in 2016. Rolex SA 's Tudor brand was the championship's title sponsor in 2014 and 2015, and since 2016 WeatherTech has served as title sponsor. The season begins with its premier race, the Rolex 24 at Daytona , the last weekend of January and ends with the Petit Le Mans , another North American Endurance Cup race, in early October. On September 5, 2012, it
15400-455: The name, logo and identity of the new series. On January 8, 2013, the two series' announced a preliminary class structure for the new merged series. Grand-Am's Daytona Prototype category and IMSA's P2 would combine into a single-prototype class, with allowances for the unique DeltaWing to also compete in the new class. The Le Mans Prototype Challenge class of single spec cars from the American Le Mans Series would continue as is, although
15540-551: The only manufacturers offering a front-drive longitudinal engine layout. Years before this was the most common layout in Europe, with examples like Citroën DS , Renault 12 , Renault 5 , Renault 25 (a Chrysler LH ancestor) Alfa Romeo 33 , Volkswagen Passat , etc. This transition can be exemplified in the Renault 21 that was offered with disparate engine configurations. The 1.7-litre version featured an "east–west" (transversely) mounted engine, but Renault had no gearbox suitable for
15680-504: The performance of petrol and diesel LMP1s are also being addressed. Daytona Prototypes are a product of the Grand-Am Rolex Sports Car Series , and offer a different interpretation of the prototype theme. DPs, as they are often called, are closed-cockpit, purpose-built racing machines which are less expensive and (deliberately) somewhat slower than Le Mans Prototypes, which were becoming dangerously quick on
15820-963: The pre-war DKW F8 and F9 reappeared as the IFA F8 and IFA F9 in 1949, followed by the AWZ P70 in 1955, the Wartburg 311 in 1956 and the Trabant in 1958, all with front-wheel drive. The P70 and Trabant had Duroplast bodies, and the Trabant had both a monocoque body and a transversely mounted engine, a modern design in some ways. In 1950 West German makers also reintroduced front-wheel-drive cars: DKW had lost its production facilities in Eisenach (now in DDR) and reestablished itself in Ingolstadt. A version of
15960-570: The pre-war F9 was introduced as the DKW F89. Borgward introduced 2 new makes with front-wheel drive, the Goliath and the Lloyd in 1950. Gutbrod also came with a car in 1950; the Superior, but withdrew the car in 1954 and concentrated on other products. This car is best remembered for its Bosch fuel-injection . In 1955, one of the first Japanese manufacturers to utilize front-wheel drive with
16100-466: The premier form of "sports car" racing from 1976, with prototypes going into a general decline apart from Porsche 936 domination at Le Mans and a lower-key series of races for smaller two-litre Group 6 prototypes. A peculiarly American form of sports car racing was the Can-Am series, in which virtually unlimited sports prototypes competed in relatively short races. This series ran from 1966 to 1974 and
16240-685: The previous motorsport category series of the American Le Mans Series and the Grand-Am Rolex Sports Car Series . These cars were Daytona Prototypes , LMP2 prototypes & the Nissan DeltaWing . Starting in 2017 the original Daytona Prototypes, and the DeltaWing were phased out of competition, and replaced by the new DPi cars. At the end of the 2018 WeatherTech SportsCar Championship season this class would be split into two separate classes, DPi & LMP2 for
16380-725: The public, and a few months later the Ruxton automobile . The Cord L-29's drive system was again inspired by racing, copying from the Indianapolis 500 -dominating racers, using the same de Dion layout and inboard brakes. Moreover, the Auburn (Indiana) built Cord was the first ever front-wheel drive production car to use constant-velocity joints . These very specific components allow motive power to be delivered to steered wheels more seamlessly than universal joints , and have become common on almost every front-wheel-drive car, including on
16520-437: The regulations they are built to, as quick as or quicker than their single-seat counterparts. Although not widely known, sports-prototypes (along with Formula 1 cars) are responsible for introducing the most numbers of new technologies and ideas to motorsport, including rear-wings, ground effect 'venturi' tunnels, fan-assisted aerodynamics and dual-shift gearboxes. Some of these technologies eventually filter down to road cars. In
16660-471: The rights to almost every series. The World Challenge was transferred to Versus, while the ALMS was transferred to an ESPN/ABC partnership. ALMS races are shown live online with a telecast the following day (although Speed still has the rights to the 24 Hours of Le Mans, which is still televised live). For 2012, some races will be televised live. Speed, having a partnership with NASCAR, still has exclusive rights to
16800-520: The same transverse-mounted, forward-motor layout as modern front-wheel-drive automobiles. It even resembled the smaller version of its popular Alfa Romeo Giulia . However, due to the financial difficulties in post-war Italy, the 33 never saw production. Had Alfa-Romeo succeed in producing 33, it would have preceded the Mini as the first "modern" European front-wheel-drive compact car. The German car industry resumed from WW2 in 1949/1950. In East Germany (DDR),
16940-581: The second seat. During the later 1930s, French constructors, unable to keep up with the progress of the Mercedes-Benz and Auto-Union cars in GP racing, withdrew into primarily domestic competition with large-capacity sports cars – marques such as Delahaye , Talbot and the later Bugattis were locally prominent. Similarly, through the 1920s and 1930s the road-going sports/GT car started to emerge as distinct from fast tourers (Le Mans had originally been
17080-442: The series between the 2014 and 2021 seasons. Sports car racing Sports car racing is a form of motorsport road racing which utilises sports cars that have two seats and enclosed wheels. They may be either purpose-built sports prototypes which are the highest level in sports car racing or grand tourers (GT cars) based on road-going models and therefore, in general, not as fast as sports prototypes. Sports car racing
17220-471: The success of small, inexpensive cars, especially the British Mini . As engineered by Alec Issigonis , the compact arrangement located the transmission and engine sharing a single oil sump – despite disparate lubricating requirements – and had the engine's radiator mounted to the side of the engine, away from the flow of fresh air and drawing heated rather than cool air over
17360-473: The transmission in the sump, and the cooling fan drawing hot air from its side-facing location. Volvo Cars has switched its entire lineup after the 900 series to front-wheel drive. Swedish engineers at the company have said that transversely mounted engines allow for more crumple zone area in a head-on collision. American auto manufacturers are now shifting larger models (such as the Chrysler 300 and most of
17500-586: The transmission-in-sump " Suitcase " engine that it had co-developed with Peugeot in the 1970s for its compact models, starting with the Renault 9 in 1982. Peugeot-Citroen themselves also moved over to the end-on gearbox solution when it phased out the Suitcase unit in favour of the TU-series engine in 1986. Nissan also abandoned the transmission-in-sump concept for its N12-series Cherry/Pulsar in 1982. Perhaps symbolically, British Leyland themselves, heirs to
17640-473: The use of constant velocity jointed drive axles, along with front wheel drive has evolved into the modern-day mass-market automobile. Some suggest that the introduction of the modern Volkswagen Golf in 1974, from a traditional U.S. competitor, and the introduction of the 1973 Honda Civic , and the 1976 Honda Accord served as a wake-up call for the "Big Three" (only Chrysler already produced front-wheel-drive vehicles in their operations outside North America). GM
17780-401: The world stage. Road races such as the Mille Miglia included everything from stock touring cars to World Championship contenders. The Mille Miglia was the largest sporting event in Italy until a fatal accident caused its demise in 1957. The Targa Florio , another tough road race, remained part of the world championship until the 1970s and remained as a local race for many years afterwards. As
17920-556: Was added. Initially, this format was only to be used in endurance races, but was eventually applied to all races. For 2012, only a handful of LMPs are being entered, with almost all of them being powered by Japanese manufacturers ( Nissan , Honda , etc.). The British manufacturer Morgan has entered a Judd -powered LMP. Aston Martin Racing , who for several years had entered an LMP, has returned to GT for 2012. The reformatted Trans-Am Series remained stagnant, being heavily overshadowed by
18060-609: Was an expansion of the USRRC that conformed to FIA Group 7 rules. The original Can-Am fell victim to rising costs and the energy crisis . The ACO, organisers of the Le Mans 24 Hours, attempted to come up with a formula that would encourage more prototypes back to the race but would also be relatively economical – their Grand Touring Prototype rules in the late 1970s, based on fuel consumption rules, gave rise to two different varieties of sports car racing that were widely held to be
18200-644: Was announced as the new title sponsor for the series, renaming the series to the WeatherTech SportsCar Championship, starting with the 2016 season. Beginning with the 2019 season, the series is covered exclusively by NBC Sports in the United States. The NBC broadcast network will air nine hours of coverage annually, with the majority of the coverage airing on NBCSN . CNBC and the NBC Sports app will provide supplemental coverage. Beginning with 2022, USA Network replaced NBCSN as
18340-616: Was announced that the Grand-Am Road Racing sanctioning body would merge with the Braselton -based International Motor Sports Association , and as such, both bodies would merge their premiere sports car series, the Rolex Sports Car Series and American Le Mans Series respectively, with plans to debut in 2014. On November 20, 2012, the merger committee announced that SME Branding were selected to develop
18480-493: Was even later with the 1979 Vauxhall Astra / Opel Kadett . Captive imports were the US car makers initial response to the increased demand for economy cars . The popularity of front-wheel drive began to gain momentum, with the 1981 Ford Escort , the 1982 Nissan Sentra , and the 1983 Toyota Corolla . Front-wheel drive became the norm for mid-sized cars starting with the 1982 Chevrolet Celebrity , 1982 Toyota Camry , 1983 Dodge 600 , 1985 Nissan Maxima , 1986 Honda Legend , and
18620-488: Was held at the Indianapolis Motor Speedway on Saturday, 30 May 1925. However, the idea of front-wheel drive languished outside the motor racing arena as few manufacturers attempted the same for production automobiles. Alvis Cars did introduce a commercial model of the front-wheel drive 12/50 racer in 1928, but it was not a success. In France, Jean-Albert Grégoire and Pierre Fenaille developed
18760-526: Was largely dominated by BMW , Porsche and Mercedes-Benz , although sports car/GT racing gradually became eclipsed by touring cars and the initially sports car based Deutsche Rennsport Meisterschaft gradually evolved into the Deutsche Tourenwagen Meisterschaft . Porsche started to evolve a line of sports prototypes from the late 1950s; noted for their toughness and reliability they started to win in races of attrition such as
18900-486: Was largely solved by making the shorter driveshaft solid, and the longer one hollow, to ensure both shafts experienced elastic twist which was roughly the same. After the 128, Fiat further demonstrated the layout's flexibility, re-configurating the 128 drive train as a mid-engined layout for the Fiat X1/9 . The compact, efficient Giacosa layout – a transversely-mounted engine with transmission mounted beside
19040-467: Was not born until the first 24 Hours of Le Mans race in 1923 , and while as a joint-creator of that race he may have been prejudiced in his opinion, it is certainly true that sports-car racing as it was known after 1919 did not exist before the First World War." In the 1920s, the cars used in endurance racing and Grand Prix were still basically identical, with fenders and two seats, to carry
19180-657: Was seen in Formula 1. Homologation saw many out-and-out racing cars produced in sufficient quantities to see them classed as production vehicles; the FIA responded by placing more restrictions on even the allegedly production-based cars and placed draconian limits on the power available to prototypes – these prototypes of the late 1960s/early 1970s were comfortably quicker than contemporary Grand Prix machinery and for 1972 they were constrained to run much smaller engines to F1 rules, often de-tuned for endurance. Group 4 Grand Touring Cars and Group 5 Special Production Cars became
19320-642: Was the Lohner–Porsche of 1897 with an electric motor in each front wheel, produced by Lohner-Werke in Vienna. It was developed by Ferdinand Porsche in 1897 based on a concept developed by American inventor Wellington Adams . Porsche also raced it in 1897. J. Walter Christie of the United States patented a design for a front-wheel-drive car, the first prototype of which he built in 1904. He promoted and demonstrated several such vehicles, notably with transversely mounted engines, by racing at various speedways in
19460-669: Was the supercharged Alvis 12/50 racing car designed by George Thomas Smith-Clarke and William M. Dunn of Alvis Cars of the United Kingdom. This vehicle was entered in the 1925 Kop Hill Climb in Princes Risborough in Buckinghamshire on 28 March 1925. Harry Arminius Miller of Menomonie, Wisconsin designed the Miller 122 front-wheel drive race-car that was entered in the 1925 Indianapolis 500 , which
19600-401: Was to create the happy combination of a low centre of gravity boxer engine (flat four) with a special frame. Due to post-war financial problems Cemsa could not continue production, but the project was resumed when taken on by Lancia in the 50s. In 1954, Alfa-Romeo had experimented with its first front-wheel-drive compact car named "33" (not related to the sports car similarly named "33"). It had
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