An open-wheel car is a car with the wheels outside the car's main body, and usually having only one seat. Open-wheel cars contrast with street cars, sports cars , stock cars , and touring cars , which have their wheels below the body or inside fenders . Open-wheel cars are built both for road racing and oval track racing . Open-wheel cars licensed for use on public roads ( street legal ), such as the Ariel Atom , are uncommon, as they are often impractical for everyday use.
50-505: The Dallara IL-15 is an open-wheel formula racing car chassis, designed, developed and built by Dallara , and is the current spec-chassis for the one-make Indy NXT spec-series, a feeder series for the IndyCar Series , which has been manufactured since 2015. This motorsport-related article is a stub . You can help Misplaced Pages by expanding it . Open-wheel car American racecar driver and constructor Ray Harroun
100-610: A closed circuit or on a street circuit utilizing temporarily closed public roads . The objective is to complete a predetermined number of circuit laps in the least amount of time, or to accumulate the most circuit laps within a predetermined time period. Originally, road races were held almost entirely on public roads. However, public safety concerns eventually led to most races being held on purpose-built racing circuits. Road racing's origins were centered in Western Europe and Great Britain as motor vehicles became more common in
150-580: A protection system to the cockpit called the "halo" , a wishbone-shaped frame aimed to deflect debris away from a driver's head. Despite initial criticism, including for the reason of obstructing the driver's vision, it gained some praise in the Formula 2 sprint race in Catalunya when Nirei Fukuzumi spun and had the back of his car land on fellow countryman Tadasuke Makino 's halo. In the 2018 Formula 1 Belgian Grand Prix , McLaren driver Fernando Alonso
200-479: A revolutionary concept which would become the originator and forefather of the single-seater (i.e. monoposto) racecar design. Harroun has also been credited by some as pioneering the rear-view mirror which appeared on his 1911 Indianapolis 500 winning car, though he himself claimed he got the idea from seeing a mirror used for a similar purpose on a horse-drawn vehicle in 1904. Prior to World War II , street automobiles generally had wheels that protruded beyond
250-491: A stand full of spectators, killing 15 and himself. In 1970, Jochen Rindt won the Formula One drivers' championship posthumously, the only man to do so, underlining the continuing risks associated with road racing. The tragedies highlighted the need for improved safety standards for both drivers and spectators; safety would continue to be an issue throughout the 1960s and 1970s. When motorcycle racer Gilberto Parlotti
300-580: Is 1,500 kilograms (3,200 lb). Open-wheeled racing is among the fastest in the world. Formula One cars can reach speeds in excess of 360 kilometres per hour (220 mph). At Autodromo Nazionale Monza , Antônio Pizzonia of BMW Williams F1 team recorded a top speed of 369.9 kilometres per hour (229.8 mph) (over 102 m/s) in the 2004 Italian Grand Prix . Since the end of the V10 era in 2006, such high speeds have not been reached, with later vehicles reaching around 360 kilometres per hour (220 mph). It
350-748: Is difficult to give precise figures for the absolute top speeds of Formula One cars as the data are not generally released by teams. The 'speed traps' on fast circuits such as Monza give a good indication, but are not necessarily located at the point on the track where the car is travelling at its fastest. BAR Honda team recorded an average top speed of 400 kilometres per hour (250 mph) in 2006 at Bonneville Salt Flats , with unofficial top speed reaching 413 kilometres per hour (257 mph) using their modified BAR 007 Formula One car. Speeds on ovals can range in constant excess of 210–220 miles per hour (340–350 km/h), and at Indianapolis in excess of 230 miles per hour (370 km/h). In 2000, Gil de Ferran set
400-474: Is expected in covered-wheel racing, as for example in NASCAR. Open-wheeled drivers must be extremely precise to avoid contact. Regulations tend to permit much lower open-wheel car weights than in categories that more closely resemble street-legal vehicles, such as sports , touring , and stock cars . For instance, a Formula One car must weigh at least 798 kilograms (1,759 lb); the minimum weight for NASCAR
450-642: Is not always the case; some open-wheel categories raced primarily as development or amateur categories, such as Formula Ford or Formula Vee , do not permit the use of wings or ground effect aerodynamics. Some major races, such as the Singapore Grand Prix , Monaco Grand Prix (sanctioned by Formula One) and the Long Beach Grand Prix (sanctioned by IndyCar), are held on temporary street circuits . However, most open-wheel races are on dedicated road courses , such as Watkins Glen in
500-844: The Circuit de la Sarthe circuit near the town of Le Mans , France , the Spa-Francorchamps Circuit in Belgium and the Mount Panorama Circuit in Australia. Certain European race circuits were situated in mountainous regions where the topography meant that the roads featured numerous curves and elevation changes, allowing the creation of sinuous and undulating race courses such as the Nürburgring in
550-700: The Detroit Grand Prix , and the Honda Indy Toronto . The popularity of Formula One and motorcycle Grand Prix racing led to the formation of road racing world championships for other types of vehicles. In 1953, the FIA sanctioned a world championship for sports car racing which combined the Le Mans 24 Hours, the Mille Miglia, the 12 Hours of Sebring , the 24 Hours of Spa and the 1000km of
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#1732780054482600-637: The Eifel mountains of Germany and the Circuit de Charade in the Chaîne des Puys in the Massif Central of France. These circuits presented such a challenge that they were both feared and respected by racers. The 20.8 km (12.9 mi) long Nurburgring with more than 300 metres (1,000 feet) of elevation change from its lowest to highest points, was nicknamed "The Green Hell" by Jackie Stewart , due to its challenging nature. The sinuous track layout of
650-773: The Indianapolis Motor Speedway , and the oval, banked speedways constructed in Europe at Monza in 1922 and at Montlhéry in 1924. Road racing on public roads was banned in Great Britain in 1925 when a spectator was injured at the Kop Hill Climb event. The Royal Automobile Club (R.A.C.) and the Auto-Cycle Union (A.C.U.) stopped issuing permits for races on public roads, a policy that has not changed to this day. Donington Park
700-719: The Monza Circuit the fastest lap in the 2021 Grand Prix ( Daniel Ricciardo 1:24.812) is more than six seconds per lap faster than the fastest closed-wheel racing car, an LMP1 sports car , and more than 20 seconds per lap faster than the DTM touring car lap record. Driving an open-wheel car is substantially different from driving a car with fenders. Virtually all Formula One and IndyCar drivers spend some time in various open-wheel categories before joining either top series. Open-wheel vehicles, due to their light weight, aerodynamic capabilities, and powerful engines, are often considered
750-944: The North West 200 and the Ulster Grand Prix . In Formula One, street circuits have made a comeback with the Melbourne Grand Prix Circuit and the Baku City Circuit joining the Circuit de Monaco as part of the world championship. There are no street circuits being used in MotoGP racing. . In North America, racing on public streets takes place at the Grand Prix of Long Beach , the Firestone Grand Prix of St. Petersburg ,
800-641: The Targa Florio (run on 93 miles (150 km) of Sicilian roads), the 75 miles (121 km) German Kaiserpreis circuit in the Taunus mountains, the 48 miles (77 km) French circuit at Dieppe, used for the 1907 Grand Prix and, the Isle of Man TT motorcycle road circuit first used in 1907. The exceptions were the steeply banked egg-shaped near oval circuit of Brooklands in England , completed in 1906,
850-681: The Charade circuit caused some drivers like Jochen Rindt in the 1969 French Grand Prix to complain of motion sickness , and wear open face helmets just in case. In 1949 the FIM introduced the Grand Prix motorcycle racing world championship with the 1949 Isle of Man TT being the inaugural event. With the exception of the Monza circuit, all the Grand Prix races were held on street circuits . The Association Internationale des Automobiles Clubs Reconnus
900-518: The FIM. Another motorcycle racing incident occurred at Monza during the 1973 Italian motorcycle Grand Prix when a racing accident claimed the lives of world champion Jarno Saarinen and Renzo Pasolini . After the von Trips accident in 1961, the Monza Circuit had been lined with steel barriers as a result of demands by automobile racers. Most auto racers believed steel barriers would improve safety for auto racers and spectators, but they had
950-627: The Indianapolis Motor Speedway and the Milwaukee Mile track, or on dirt tracks using widely available horse racing circuits. Automobile dirt track racing would develop into stock car racing . American racing also branched out into drag racing . Road racing traditions in Europe, South America, Great Britain and the British Commonwealth nations grew around races held on paved, public roads such as
1000-491: The Indy 500. Compared to covered-wheel race cars, open-wheeled cars allow more precise placement of the front wheels on the race course, as the tires are clearly visible to the driver. This allows the maximum potential of the cars to be achieved during cornering and passing. Furthermore, open-wheeled cars are less tolerant of vehicle-to-vehicle contact, which usually results in vehicle damage and retiring, whereas some level of contact
1050-568: The Isle of Man TT, lost their world championship status due to their considerable safety risk, their popularity continued to flourish leading to a branch of road racing known as Traditional Road Racing . Traditional road racing on closed public roads is popular in the United Kingdom, New Zealand and parts of Europe. The Duke Road Racing Rankings was established in 2002 to establish rider classifications in traditional road racing events such as
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#17327800544821100-715: The Nurburgring . NASCAR held its first road race in 1957 at the Watkins Glen International circuit with Buddy Baker as the winner. The FIA launched the European Touring Car Championship in 1963. The FIA created the International Karting Commission (CIK) in 1962 and, in 1964, the first CIK Karting World Championship was won by Guido Sala . Karting has become a significant step in
1150-649: The US, Nürburgring in Germany, Spa-Francorchamps in Belgium and Silverstone in Great Britain. In the United States, some top-level open-wheel events are held on ovals, of both short track and superspeedway variety, with emphasis more on speed and endurance than the maneuverability required for road and street course events. The Whelen Modified Tour is the only opened wheeled race car series endorsed by NASCAR . This series races on most of NASCAR's most famous tracks in
1200-618: The United States was a 54-mile competition from Chicago to Evanston , Illinois and return, held on November 27, 1895. By 1905, the Gordon Bennett Cup , organized by the Automobile Club de France , was considered the most important race in the world. In 1904, the Association Internationale des Automobiles Clubs Reconnus was formed by several European automobile clubs. In 1904 the FIM created
1250-570: The United States. Other asphalt modified series race on short tracks in the United States and Canada, such as Wyoming County International Speedway in New York. The best-attended oval race in the world is the annual Indianapolis 500 (Indy 500) in Speedway, Indiana , sanctioned by IndyCar; in the United States it is quite common to refer to open-wheel cars as IndyCars, because of their recognizable appearance and widespread popularity across America at
1300-696: The Whelen Modified Tour, where the engine is in front of the driver. Depending on the rules of the class, many types of open-wheelers have wings at the front and rear of the vehicle, as well as a very low and virtually flat undertray that helps achieve additional aerodynamic downforce pushing the car onto the road. While many other categories of racing cars produce downforce, the top categories of open-wheel racing cars (particularly Formula One and IndyCar ) produce far more downforce relative to their mass than any other racing category, allowing much higher corner speeds on comparable tracks. However, this
1350-498: The country and drew large crowds of spectators. The first 24 Hours of Le Mans endurance race was held in 1923. The Automobile Racing Club of America was founded in 1933 and became the Sports Car Club of America in 1944. The great majority of road races were run over a lengthy circuit of closed public roads, not purpose-built racing circuits. This was true of the Le Mans circuit of the 1906 French Grand Prix, as well as
1400-611: The development of road racers including Formula One world champion Lewis Hamilton . The European Truck Racing Championship was founded in 1985. A Superbike World Championship for road-going production motorcycles was created in 1988 . As road racing grew in popularity it eventually expanded across the globe with Grand Prix road races having been held on six continents. Expansion of the Formula One and MotoGP series has resulted in many dedicated tracks being built, like in Qatar in
1450-520: The driver of the race car, 83 spectators were killed and 120 were injured. Auto racing was temporarily banned in several countries after the Le Mans disaster until safety was improved for spectators. Switzerland would not allow circuit racing until the Zürich ePrix in 2018. The Formula One championship experienced its worst tragedy during the 1961 Italian Grand Prix at Monza, when driver Wolfgang von Trips lost control of his Ferrari and crashed into
1500-575: The early 20th century. After the Second World War, automobile road races were organized into a series called the Formula One world championship sanctioned by the Fédération Internationale de l'Automobile (FIA), while motorcycle road races were organized into the Grand Prix motorcycle racing series and sanctioned by the Fédération Internationale de Motocyclisme (FIM). The success and popularity of road racing has seen
1550-492: The fastest racing vehicles available and among the most challenging to master. Wheel-to-wheel contact is dangerous, particularly when the forward edge of one tire contacts the rear of another tire: since the treads are moving in opposite directions (one upward, one downward) at the point of contact, both wheels rapidly decelerate, torquing the chassis of both cars and often causing one or both vehicles to be suddenly and powerfully flung upwards (the rear car tends to pitch forward, and
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1600-598: The front car tends to pitch backward.) An example of this is the 2005 Chicagoland crash of Ryan Briscoe and Alex Barron . The lower weight of an open-wheel racecar enables better performance. While the exposure of the wheels to the airstream causes a very high aerodynamic drag at high speeds, it allows improved cooling of the brakes, which is important on road courses with their frequent changes of pace. In 2018, several single seater series such as Formula One, Formula 2 (with their new Dallara F2 2018 chassis), and Formula E (with their new Spark SRT05e chassis) introduced
1650-609: The international cup for motorcycles. The first international motorcycle road race took place in 1905 at Dourdan , France. After disagreeing with Bennett Cup organizers over regulations limiting the number of entrants, the French automobile manufacturers responded in 1906 by organizing the first French Grand Prix race held at Le Mans. During the 1910s, the Elgin National Road Races held on public roads around Elgin, Illinois attracted competitors from around
1700-556: The late 1950s sparked to a renewal of interest in road racing in the United States and, led to the construction of new road racing circuits such as Riverside International Raceway , Road America and Laguna Seca . The 1964 United States motorcycle Grand Prix was held at the Daytona International Speedway and led to increased international prominence for the Daytona 200 road race which peaked in 1974 with
1750-507: The main body of the car, and thus the open-wheel design became almost exclusively associated with racing vehicles. Formula One cars have almost exclusively used the open-wheel design throughout the history of the championship. The only notable exception was the "Monza body" variation of the Mercedes-Benz W196 racer of 1954–55, which covered the wheels with bodywork for aerodynamic reasons. Modern Formula One regulations mandate
1800-769: The number of safety personnel required. These changes saw a dramatic decrease in deaths and accidents. By the 1980s, motorcycle Grand Prix and the Formula One races were held on purpose built race circuits with the exception of the Monaco Grand Prix held on the city streets of Monaco. Street circuits such as the Montjuïc circuit and the Opatija Circuit with their numerous unmovable roadside obstacles, such as trees, stone walls, lampposts and buildings, were gradually removed from world championship competition. Although events held on closed public roads such as
1850-471: The one-lap qualifying record of 241.428 miles per hour (388.541 km/h) at California Speedway . Even on tight non-oval street circuits such as the Grand Prix of Toronto , open-wheel Indy Cars attain speeds of 190 miles per hour (310 km/h). Regardless of top speeds, Formula One open-wheel race cars hold the outright lap record at the circuits where they race due to their combination of top speed, acceleration, and cornering abilities. For example, at
1900-482: The open-wheel configuration. A typical open-wheeler has a minimal cockpit, sufficient only to enclose the driver's body, with the head exposed to the air. In the Whelen Modified Tour and other short track modified series, the driver's head is contained in the car. In modern cars, the engine is often located directly behind the driver and drives the rear wheels; except in asphalt modified cars, such as
1950-492: The opposite effect for motorcyclists and proved fatal for Saarinen and Pasolini. The dangers of street circuits was further exposed at the 1975 Spanish Grand Prix held on the twisty, tree-lined Montjuich circuit in Barcelona. The racing drivers found that the circuit's safety barriers had been shoddily installed and threatened to strike if the barriers were not brought up to standard. Under pressure from race organizers,
2000-651: The race was started only to be stopped after 29 laps when the car of Rolf Stommelen plowed into the crowd, killing four spectators. By the late 1970s, the popularity of Grand Prix road racing attracted corporate sponsors and lucrative television contracts which, led to an increased level of professionalism. Road racers organized to demand that stricter safety regulations be adopted by sanctioning bodies in relation to race track safety and race organizers requirements. Race circuits that had originally been public roads were widened and modified to include chicanes and run-off areas while, some circuits were shortened to reduce
2050-415: The sport spread across the globe with Grand Prix road races having been held on six continents. Other variations of road racing include; open-wheel racing , sports car racing , touring car racing , stock car racing , superbike racing , truck racing , kart racing and endurance racing . The first organized automobile race was held on July 22, 1894, from Paris to Rouen , France. The first held in
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2100-496: The start of the 2020 Bahrain Grand Prix , Romain Grosjean collided with Daniil Kvyat in which his car broke in two and burst into flames as it split the barrier. The halo helped protect Grosjean from possible decapitation while it allowed him to escape from the fire. Road course Road racing is a North American term to describe motorsport racing held on a paved road surface . The races can be held either on
2150-410: The vehicle's main body, though they were typically covered with mudguards to protect the car body and following traffic from water and mud spray. With the advent of unibody vehicle construction, the desire to maximise interior space, to improve aerodynamics, and aircraft-inspired styling trends of the era, by the end of the 1950s the majority of new road-registerable vehicles had wheels that were under
2200-422: The victory by 15-time world champion Giacomo Agostini . The dangers associated with the increasing speeds at road races were highlighted by the 1955 Le Mans disaster . With spectators seated near the edges of the circuit, two race cars came into contact causing one of the vehicles to crash into the embankment, where it exploded in a ball of flames and then plowed through the crowd of spectators. In addition to
2250-696: The years. Notable exceptions are the Mille Miglia which was allowed to continue until 1957 and, the Pau Grand Prix which has been held on the city streets of Pau, France since 1933. After the First World War, automobile and motorcycle road racing competitions in Europe and in North America went in different directions. Automobile and motorcycle racing in the United States was typically oval track racing on paved tracks such as
2300-605: Was an early pioneer of the concept of a lightweight single-seater, open-wheel "monoposto" racecar. After working as a mechanic in the automotive industry, Harroun began competitive professional racing in 1906, winning the AAA National Championship in 1910. He was then hired by the Marmon Motor Car Company as chief engineer, charged with building a racecar intended to race at the first Indianapolis 500 , which he went on to win. He developed
2350-430: Was killed while competing in the 1972 Isle of Man TT , it sparked a rider's boycott of the event led by multi-time world champion, Giacomo Agostini , a close friend of Parlotti. Once the most prestigious race of the year, the event was increasingly boycotted by the top riders, and in 1976, the Isle of Man TT finally succumbed to pressure for increased safety in racing events and had its world championship status revoked by
2400-547: Was renamed the Fédération Internationale de l’Automobile in 1946 and, plans were developed for a road racing world championship. In 1950 , the FIA created the Formula One world championship, a competition of seven rounds that included the Indianapolis 500. A Formula I manufacturers' championship was begun in 1955. The success of American racers such as Phil Hill and Dan Gurney in Formula One in
2450-591: Was sent airborne after being hit from behind by the Renault of Nico Hülkenberg and struck the halo of Sauber driver Charles Leclerc , thereby saving the Monegasque driver from a visor strike. In 2019 , the newly-formed FIA Formula 3 Championship introduced a halo to their new chassis which was unveiled at the 2018 Abu Dhabi Grand Prix . In 2020 , the IndyCar Series adopted a halo combined with an aeroscreen, built by Red Bull Advanced Technologies. At
2500-402: Was the first permanent park circuit in the United Kingdom and held its first motorcycle race in 1931. As automobile and motorcycle technology improved, racers began to achieve higher speeds that caused an increasing number of accidents on roads not designed for motorized vehicles. Public safety concerns ultimately caused the number of road racing events on public roads in Europe to decrease over
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