A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake , and an exhaust ). A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power .
119-530: The Bentley Arnage is a full-size luxury car manufactured by Bentley Motors in Crewe , England, from 1998 to 2010. The Arnage and its Rolls-Royce -branded sibling, the Silver Seraph , were introduced in the spring of 1998. They were the first entirely new designs for the two marques since 1980. The Arnage was powered by a BMW M62 V8 engine, with Cosworth -engineered twin-turbo installation, and
238-469: A front for Rolls-Royce Limited . Not even Bentley himself knew the identity of the purchaser until the deal was completed. Barnato received £42,000 for his shares in Bentley Motors. In 1934 he was appointed to the board of the new Bentley Motors (1931) Ltd. In the same year Bentley confirmed that it would continue racing. Rolls-Royce took over the assets of Bentley Motors (1919) Ltd and formed
357-599: A "standard" ready-to-drive complete saloon car. The first steel-bodied model produced was the Bentley Mark VI : these started to emerge from the newly reconfigured Crewe factory early in 1946. Some years later, initially only for export, the Rolls-Royce Silver Dawn was introduced, a standard steel Bentley but with a Rolls-Royce radiator grille for a small extra charge, and this convention continued. Chassis remained available to coachbuilders until
476-719: A 0–97 km/h (60 mph) in 5.3 seconds in a car weighing 2.5 tonnes . Fuel consumption was heavy, with Bentley stating that the model averages less than 10 mpg in the city and just over 20 on the highway in European testing. A replacement model, which was called the Bentley Mulsanne was launched in August 2009, at the Pebble Beach Concours d'Elegance , in Monterey, California . The Arnage
595-413: A 1.5-liter OHV straight-4 with four valves per cylinder as far back as 1914 but did not use this engine until after World War I . It produced appr. 30 bhp (22.4 kW) at 2700 rpm (15.4 kW/liter or 0.34 bhp/cid). In the 1920 Voiturettes Grand Prix at Le Mans driver Ernest Friderich finished first in a Bugatti Type 13 with the 16-valve engine, averaging 91.96 km/h. Even more successful
714-598: A 31% rise in global sales in FY21 despite shutdowns caused by the global coronavirus pandemic. Sources Volkswagen AG Annual Reports Grand tourer Multi-valve A multi-valve engine design has three, four, or five valves per cylinder to achieve improved performance. In automotive engineering , any four-stroke internal combustion engine needs at least two valves per cylinder: one for intake of air (and often fuel ), and another for exhaust of combustion gases. Adding more valves increases valve area and improves
833-549: A 360.8 cid (5.8-liter) straight-4 (0.22 bhp per cubic inch). Over 2300 of these powerful early multi-valve engines were built. Stutz not only used them in their famous Bearcat sportscar but in their standard touring cars as well. The mono block White Motor Car engine developed 72 horsepower and less than 150 were built, only three are known to exist today. In 1919 Pierce-Arrow introduced its 524.8 cid (8.6-liter) straight-6 with 24 valves. The engine produced 48.6 bhp (0.09 bhp per cubic inch) and ran very quietly, which
952-463: A Sports Saloon for the owner of James Young's, James Barclay. The early R Type Continental has essentially the same engine as the standard R Type, but with modified carburation, induction and exhaust manifolds along with higher gear ratios. After July 1954 the car was fitted with an engine, having now a larger bore of 94.62 mm (3.7 in) with a total displacement of 4,887 cc (4.9 L; 298.2 cu in). The compression ratio
1071-601: A car chassis (with a dummy engine) at the London Motor Show . Ex– Royal Flying Corps officer Clive Gallop designed an innovative four-valves-per-cylinder engine for the chassis. By December the engine was built and running. Delivery of the first cars was scheduled for June 1920, but development took longer than estimated so the date was extended to September 1921. The durability of the first Bentley cars earned widespread acclaim, and they competed in hill climbs and raced at Brooklands . Bentley's first major event
1190-655: A complete switch from tradition, these new cars would have engines provided by a third-party vendor, and bodies built at the Crewe factory. A number of potential engines were examined, including the GM Premium V engine and the Mercedes-Benz M119 engine , before, in late 1994, Vickers selected a pair of BMW power plants. It was decided that the Rolls-Royce model, to be called the Silver Seraph , would use BMW's naturally aspirated M73 V12 engine while
1309-473: A few inches further back. The overall effect is a larger rear area inside the car. This style of saloon stretch is sometimes called "double-cut" in the United States, due to the two main points where the car is extended. ( Jankel and Andy Hotton Associates, for example, are two aftermarket coachbuilders especially known for this style.) Available only as a bespoke (" Mulliner ") model, each LWB & RL
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#17327731691261428-862: A four valve per cylinder engine was the 1973 Triumph Dolomite Sprint . This Triumph used an in-house developed SOHC 16-valve 1,998 cc (122 ci) straight-4 engine that produced 127 bhp (47.6 kW/liter, 1.10 bhp/cid) at introduction. The 1975 Chevrolet Cosworth Vega featured a DOHC multi-valve head designed by Cosworth Engineering in the UK. This 122-cubic-inch straight-4 produced 110 bhp (82 kW; 112 PS) at 5600 rpm (0.90 bhp/cid; 41.0 kW/liter) and 107 lb⋅ft (145 N⋅m) at 4800 rpm. The 1976 Fiat 131 Abarth (51.6 kW/liter), 1976 Lotus Esprit with Lotus 907 engine (54.6 kW/liter, 1.20 bhp/cid), and 1978 BMW M1 with BMW M88 engine (58.7 kW/liter, 1.29 bhp/cid) all used four valves per cylinder. The BMW M88/3 engine
1547-467: A four-valve design. The three-valve design was common in the late 1980s and early 1990s; and from 2004 the main valve arrangement used in Ford F-Series trucks, and Ford SUVs. The Ducati ST3 V-twin had 3-valve heads. This is the most common type of multi-valve head, with two exhaust valves and two similar (or slightly larger) inlet valves. This design allows similar breathing as compared to
1666-433: A four-valve engine, a five-valve design should have a higher maximum RPM, and the three inlet ports should give efficient cylinder-filling and high gas turbulence (both desirable traits), it has been questioned whether a five-valve configuration gives a cost-effective benefit over four-valve designs. The rise of direct injection may also make five-valve heads more difficult to engineer, as the injector must take up some space on
1785-455: A location for a shadow factory to ensure production of aero-engines. Crewe, with its excellent road and rail links, as well as being located in the northwest away from the aerial bombing starting in mainland Europe, was a logical choice. Crewe also had extensive open farming land. Construction of the factory started on a 60-acre area on the potato fields of Merrill's Farm in July 1938, with
1904-510: A logical purchaser because BMW already supplied engines and other components for Bentley and Rolls-Royce branded cars and because of BMW and Vickers joint efforts in building aircraft engines. BMW made a final offer of £340m, but was outbid by Volkswagen AG , which offered £430m. Volkswagen AG acquired the vehicle designs, model nameplates, production and administrative facilities, the Spirit of Ecstasy and Rolls-Royce grille shape trademarks, but not
2023-497: A military background. They kept the marque's reputation for high performance alive; Bentley was noted for its four consecutive victories at the 24 Hours of Le Mans , from 1927 to 1930. Birkin developed the 4½-litre, lightweight Blower Bentley at Welwyn Garden City in 1929 and produced five racing specials, starting with Bentley Blower No.1 which was optimised for the Brooklands racing circuit. Birkin overruled Bentley and put
2142-632: A multi-valved Golf GTI 16V . The 16-valve 1.8-liter straight-4 produced 139 PS (102 kW; 137 bhp) or 56.7 kW/liter, almost 25% up from the 45.6 kW/liter for the previous 8-valve Golf GTI engine. The GM Quad 4 multi-valve engine family debuted early 1987. The Quad 4 was the first mainstream multi-valve engine to be produced by GM after the Chevrolet Cosworth Vega . The NA Quad 4 achieved 1.08 bhp (1 kW; 1 PS) per cubic inch (49.1 kW/liter). Such engines soon became common as Japanese manufacturers adopted
2261-528: A rallying legend in the 1970s winning many domestic and World Championship events. Other cars claiming to be first are the Jensen Healey , launched in 1972 which used a Lotus 907 belt-driven DOHC 16-valve 2-liter straight-4 producing 140 bhp (54.6 kW/liter, 1.20 bhp/cid). All of these, although mass-produced, are also of relatively limited production, so it is argued that the first widely available and popularly priced mass-production car with
2380-442: A rear cocktail cabinet and two picnic tables. The model also comes with four special umbrellas and a premium 1,000 watt audio system manufactured by Naim Audio . The model is offered with 42 exterior colour choices, 25 interior hides and three wood veneers. It could also be selected with the bespoke colour-matching offered by Bentley. The Final Series also marked the 50th anniversary of Bentley's V8 engine. The 2009 variant of
2499-406: A result of the slump in sales, production at Crewe was shut down during March and April 2009. Though vehicle sales increased by 11% to 5,117 in 2010, operating loss grew by 26% to € 245 million. In Autumn 2010, workers at Crewe staged a series of protests over proposal of compulsory work on Fridays and mandatory overtime during the week. Vehicle sales in 2011 rose 37% to 7,003 vehicles, with
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#17327731691262618-544: A second of the 0 to 97 km/h (60 mph) acceleration time. However, the BMW twin-turbocharged unit remained noticeably more agile and responsive from a driver's perspective, due to its more responsive character, better weight balance (maintaining a 51.1/48.9 weight distribution) and almost 272 kg (600 lb) lower curb weight. Ultimately the Green Label was more reliable and significantly less expensive to service in
2737-408: A slight increase in torque. For homologation Evolution I (1989) and Evolution II (1990) models were produced that had a redesigned engine to allow for a higher rev limit and improved top-end power capabilities. The Evo II engine offered 235 PS (173 kW; 232 hp) from 2463 cc (70.2 kW/liter). Saab introduced a 16-valve head to their 2.0-liter (1985 cc) straight-4 in 1984 and offered
2856-680: A small number assembled at Volkswagen's Dresden factory , Germany, and with bodies for the Continental manufactured in Zwickau and for the Bentayga manufactured at the Volkswagen Bratislava Plant . The joining and eventual separation of Bentley and Rolls-Royce followed a series of mergers and acquisitions, beginning with the 1931 purchase by Rolls-Royce of Bentley, then in receivership. In 1971, Rolls-Royce itself
2975-610: A split-plane crankshaft rather than the Ferrari-type flat-plane. The engine was constructed by Ducati rather than Ferrari, and was produced from 1986 through 1991. The Quattrovalvole was also used by Lancia for their attempt at the World Sportscar Championship with the LC2 . The engine was twin-turbocharged and destroked to 2.65 litres, but produced 720 hp (537 kW) in qualifying trim. The engine
3094-623: A subsidiary, Bentley Motors (1931) Ltd. Rolls-Royce had acquired the Bentley showrooms in Cork Street, the service station at Kingsbury, the complex at Cricklewood and the services of Bentley himself. This last was disputed by Napier in court without success. Bentley had neglected to register their trademark so Rolls-Royce immediately did so. They also sold the Cricklewood factory in 1932. Production stopped for two years, before resuming at
3213-407: A three-valve head, and as the small exhaust valves allow high RPM, this design is very suitable for high power outputs. Less common is the five-valve head, with two exhaust valves and three inlet valves. All five valves are similar in size. This design allows excellent breathing, and, as every valve is small, high RPM and very high power outputs are theoretically available. Although, compared to
3332-469: A two-valve design, Toyota and Yamaha changed the 4A-GE to a four-valve after a year of evaluation. It produced 115-140 bhp (86-104 kW) at 6,600 rpm (54.2-65.5 kW/liter) and 109 lb⋅ft (148 N⋅m) at 5,800 rpm. To compensate for the reduced air speed of a multi-valve engine at low rpms, the first-to-second generation engines included the T-VIS intake system. In 1986 Volkswagen introduced
3451-604: Is a British designer, manufacturer and marketer of luxury cars and SUVs . Headquartered in Crewe , England, the company was founded by W. O. Bentley (1888–1971) in 1919 in Cricklewood, North London, and became widely known for winning the 24 Hours of Le Mans in 1924 , 1927 , 1928 , 1929 and 1930 . Bentley has been a subsidiary of the Volkswagen Group since 1998 and consolidated under VW's premium brand arm Audi since 2022. Prominent models extend from
3570-464: Is also used to improve engine performance. The 1908 Ariès VT race cars had 1.4 litre supercharged single cylinder engines with four valve per cylinder desmodromic systems. (Source: [1] ) The 1910 Isotta-Fraschini Tipo KM had a 10.6 litre inline 4 with single overhead camshaft and four valves per cylinder and it had one of the first engines with fully enclosed overhead valve gear (source: Isotta Fraschini Tipo KM [1] and [2] ) The first motorcar in
3689-482: Is customised to the desires of the buyer. The LWB, however, was also the first of a new series of Arnages which would finally cure the Bentley Arnage of the reliability and performance deficiencies experienced following its forced deprivation of the modern BMW engines it was designed to use. The RL would also present a credible challenge to BMW's attempts to revive the Rolls-Royce brand with its planned new model,
Bentley Arnage - Misplaced Pages Continue
3808-480: The 3 + 1 ⁄ 2 Litre called it "the silent sports car", a slogan Rolls-Royce continued to use for Bentley cars until the 1950s. All Bentleys produced from 1931 to 2004 used inherited or shared Rolls-Royce chassis, and adapted Rolls-Royce engines, and are described by critics as badge-engineered Rolls-Royces. In preparation for war, Rolls-Royce and the British Government searched for
3927-533: The Mazda B8-ME ) use a single fork-shaped rocker arm to drive two valves (generally the exhaust valves) so that fewer cam lobes will be needed in order to reduce manufacturing costs. This has a single large exhaust valve and two smaller intake valves. A three-valve layout allows better breathing than a two-valve head, but the large exhaust valve results in an RPM limit no higher than a two-valve head. The manufacturing cost for this design can be lower than for
4046-525: The Phantom . Wheelbases ranged from 3,336 mm (131.3 in) (or only slightly longer than the standard Arnage) to 3,566 mm (140.4 in), and even 3,844 mm (151.3 in), the latter two including a 100 mm (3.9 in) increase in the height of the roof. The 3,800 mm (151 in) wheelbase version is stretched between the front and rear doors (rather than at the C-pillar and at
4165-848: The R-series engines, the Mazda B8-ME , and the Chrysler 3.5 L V6 engine . The V12 engines of many World War II fighter aircraft also used a SOHC configuration with four valves for each cylinder. The 1993 Mercedes-Benz C-Class (OM604 engine) was the first 4-valve diesel-engined car. Peugeot had a triple overhead cam five-valve Grand Prix car in 1921. In April 1988 an Audi 200 Turbo Quattro powered by an experimental 2.2-liter turbocharged 25-valve straight-5 rated at 478 kW/650 PS@6,200 rpm (217.3 kW/liter) set two world speed records at Nardo , Italy: 326.403 km/h (202.8 mph) for 1,000 km (625 miles) and 324.509 km/h (201.6 mph) for 500 miles. Mitsubishi were
4284-572: The Stutz Motor Company introduced a 322 cid (5.3-liter) dual camshaft 32-valve straight-8 with 156 bhp (116 kW) at 3900 rpm, called DV-32. The engine offered 0.48 bhp per cubic inch. About 100 of these multi-valve engines were built. Stutz also used them in their top-of-the-line sportscar, the DV-32 Super Bearcat that could reach 100 mph (160 km/h). The 1935 Duesenberg SJ Mormon Meteor's engine
4403-458: The coachbuilder of choice. Coachwork for most of these cars was completed by H. J. Mulliner & Co. who mainly built them in fastback coupe form. Other coachwork came from Park Ward (London) who built six, later including a drophead coupe version. Franay (Paris) built five, Graber (Wichtrach, Switzerland) built three, one of them later altered by Köng (Basel, Switzerland), and Pininfarina made one. James Young (London) built in 1954
4522-403: The " Bentley Boys ." During the takeover battle in 1998 between BMW and Volkswagen Group for ownership of Rolls-Royce and Bentley Motors, BMW had threatened to stop supply of their engines if Volkswagen Group won. While the threat was later withdrawn in conjunction with BMW acquiring the right to manufacture Rolls-Royce automobiles at a new location, it was clear that Volkswagen could not accept
4641-513: The 190 E 2.3-16 produced 49 hp (36 kW) and 41 ft•lbf (55 N•m) of torque more than the basic single overhead cam 2.3 straight-4 engine on which it was based offering 185 hp (138 kW) at 6,200 rpm (59.2 kW/liter) and 174 lb⋅ft (236 N⋅m) at 4,500 rpm. In 1988 an enlarged 2.5-liter engine replaced the 2.3-liter. It offered double valve timing chains to fix the easily snapping single chains on early 2.3 engines, and increased peak output by 17 bhp (12.5 kW) with
4760-437: The 1917 Stutz straight-4, White Motor Car Model GL 327 CID Dual Valve Mononblock four, and 1919 Pierce-Arrow straight-6 engines. The standard flathead engines of that day were not very efficient and designers tried to improve engine performance by using multiple valves. The Stutz Motor Company used a modified T-head with 16 valves, twin-spark ignition and aluminium pistons to produce 80 bhp (59 kW) at 2400 rpm from
4879-510: The 1920s when these DOHC engines came to Alfa road cars like the Alfa Romeo 6C . In 1916 US automotive magazine Automobile Topics described a four-cylinder, four-valve-per-cylinder car engine made by Linthwaite-Hussey Motor Co. of Los Angeles, CA, USA: "Firm offers two models of high-speed motor with twin intakes and exhausts." . Early multi-valve engines in T-head configuration were
Bentley Arnage - Misplaced Pages Continue
4998-438: The 1922 Type 29 Grand Prix racer and the legendary Type 35 of 1924. Both Type 29 and Type 35 had a 100 bhp (75 kW) 2-liter SOHC 24-valve NA straight-8 that produced 0.82 bhp (0.61 kW) per cubic inch. A.L.F.A. 40/60 GP was a fully working early racing car prototype made by the company now called Alfa Romeo . Only one example was built in 1914, which was later modified in 1921. This design of Giuseppe Merosi
5117-547: The 1924 Le Mans win by John Duff and Frank Clement , Barnato agreed to finance Bentley's business. Barnato had incorporated Baromans Ltd in 1922, which existed as his finance and investment vehicle. Via Baromans, Barnato initially invested in excess of £100,000, saving the business and its workforce. A financial reorganisation of the original Bentley company was carried out and all existing creditors paid off for £75,000. Existing shares were devalued from £1 each to just 1 shilling, or 5% of their original value. Barnato held 149,500 of
5236-654: The 2007 model year , the Garrett turbochargers were replaced with low-inertia Mitsubishi units designed to improve engine response. The engine was mated to a 6-speed ZF 6HP26 transmission also found in the Continental GT range. The new power output for the Arnage T was 507 PS (373 kW; 500 hp) and 1,000 N⋅m (738 lbf⋅ft) of torque, while the milder Arnage R was 456 PS (335 kW; 450 hp) and 875 N⋅m (645 lbf⋅ft) of torque. For
5355-615: The Arnage R. In 2001, the Arnage LWB (renamed the RL from MY2003), a long- wheelbase model (250 mm (9.8 in) longer than the Arnage), was launched. The extra length is added to the car at both its front and rear doors and its C-pillar to maintain its proportions. With the standard Arnage model, the rear wheel wells butt up against the rear door frames, but with the LWB & RL they are
5474-514: The Arnage T, the factory stated a 0–97 km/h (60 mph) acceleration time of 5.2 seconds, and a top speed of 288 km/h (179 mph). Bentley launched two limited Le Mans edition models to celebrate the occasion of Bentley's return after 71 years to racing at Le Mans. Production was planned of 50 Le Mans editions of the Continental R Mulliner and 150 of the Bentley Arnage Red label. Actually 46 copies were manufactured of
5593-491: The Bentley Continental was introduced at the 2009 Geneva Motor Show : The Continental Supersports . This new Bentley is a supercar combining extreme power with environmentally friendly FlexFuel technology, capable of using petrol (gasoline) and biofuel (E85 ethanol). Bentley sales continued to increase, and in 2005 8,627 were sold worldwide, 3,654 in the United States. In 2007, the 10,000 cars-per-year threshold
5712-522: The Bentley badge. Under Vickers, Bentley set about regaining its high-performance heritage, typified by the 1980 Mulsanne . Bentley's restored sporting image created a renewed interest in the name and Bentley sales as a proportion of output began to rise. By 1986 the Bentley:Rolls-Royce ratio had reached 40:60; by 1991 it achieved parity. In October 1997, Vickers announced that it had decided to sell Rolls-Royce Motors. BMW AG seemed to be
5831-658: The Continental R Le Mans and 153 of the Arnage Le Mans. Besides those planned models also 5 Le Mans editions were manufactured of the Continental T Le Mans and 4 of the Bentley Azure Le Mans. The Le Mans editions didn't replace any other model but were special editions of existing models. The Arnage Le Mans was a specially enhanced edition of the Arnage Red label. Exterior Le Mans Series Options Interior Le Mans Series Options Identification of
5950-528: The Detroit Motor Show. As with the Arnage R, there were twin-turbochargers, but the engine was tuned and rated at a higher power output of 456 PS (335 kW; 450 hp) and 875 N⋅m (645 lbf⋅ft) of torque. The Arnage T's 0–97 km/h (60 mph) time is 5.5 seconds and it has a claimed top speed of 274 km/h (170 mph). All Arnage R and T models share the same 3,116 mm (122.7 in) wheelbase. The Arnage range
6069-636: The Frankfurt Auto Show in September 1983 after it set a world record at Nardo, Italy, recording a combined average speed of 154.06 mph (247.94 km/h) over the 50,000 km (31,000 mi) endurance test. The engine was based on the 2.3-liter 8-valve 136 hp (101 kW) unit already fitted to the 190- and E-Class series. Cosworth developed the DOHC light alloy cast cylinder head with four large valves per cylinder. In roadgoing trim,
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#17327731691266188-546: The Gurney Nutting coupé racing along a road parallel to the Blue Train, which scenario never occurred as the road and railway did not follow the same route. The original model was the three-litre, but as customers put heavier bodies on the chassis, a larger 4½-litre model followed. Perhaps the most iconic model of the period is the 4½-litre "Blower Bentley", with its distinctive supercharger projecting forward from
6307-463: The Red Label. In reality, the outgoing BMW-powered Arnage was technically more modern, considerably more fuel efficient, and had 32 valves with double overhead camshafts , twin-turbochargers and Bosch engine management technology – as opposed to the 16-valve, single turbocharger and a pushrod engine with less advanced engine management. The Red Label's increase in motive power shaved less than
6426-712: The Rolls-Royce works in Derby. Unhappy with his role at Rolls-Royce, when his contract expired at the end of April 1935 W. O. Bentley left to join Lagonda . When the new Bentley 3½ litre appeared in 1933, it was a sporting variant of the Rolls-Royce 20/25 , which disappointed some traditional customers yet was well received by many others. W. O. Bentley was reported as saying, "Taking all things into consideration, I would rather own this Bentley than any other car produced under that name". Rolls-Royce's advertisements for
6545-540: The Seraph employed a BMW M73 V12 engine . In September 2008, Bentley announced that production of the model would end during 2010. Following an uplift in sales for all of Rolls-Royce, and a resurgence of the Bentley marque, the then-owner, Vickers , set about developing a new model to replace the derivatives of the Rolls-Royce Silver Spirit / Bentley Mulsanne which it had been selling since 1980. In
6664-782: The UK as a result of the COVID-19 pandemic . On 3 November 2020, Bentley announced that all new cars sold will be electric by 2030. This announcement also follows after the United Kingdom Prime Minister Boris Johnson announced in February 2020 that he approved legislation that will ban and phase out non-electric vehicles (including Hybrid and Plug-in Hybrid vehicles) from the UK by 2030 with hybrids being banned by 2035. Sources Volkswagen AG Annual Reports and press releases Bentley recorded
6783-586: The added cost of a DOHC valve train . The Ford design uses one spark plug per cylinder located in the centre, but the Mercedes design uses two spark plugs per cylinder located on opposite sides, leaving the centre free to add a direct-to-cylinder fuel injector at a later date. The 1989 Citroën XM was the first 3-valve diesel-engined car. Examples of SOHC four-valve engines include the Honda F-series engines, D-series engines, all J-series engines,
6902-543: The bottom of the grille. Uncharacteristically fragile for a Bentley it was not the racing workhorse the 6½-litre was, though in 1930 Birkin remarkably finished second in the French Grand Prix at Pau in a stripped-down racing version of the Blower Bentley, behind Philippe Etancelin in a Bugatti Type 35 . The 4½-litre model later became famous in popular media as the vehicle of choice of James Bond in
7021-422: The business and reputation risks associated with having their rival as a long-term business partner. Furthermore, customers were uncertain about engine and part availability (of which there turned out to be no issue) and orders for new cars dropped precipitously. Volkswagen's response was to adapt the old 16-valve, 6.75-litre pushrod engine from the (Mulsanne) Turbo R for the Arnage body, which had been designed for
7140-418: The cars. BMW paid Rolls-Royce plc £40m to license the Rolls-Royce name and logo. After negotiations, BMW and Volkswagen AG agreed that, from 1998 to 2002, BMW would continue to supply engines and components and would allow Volkswagen temporary use of the Rolls-Royce name and logo. All BMW engine supply ended in 2003 with the end of Silver Seraph production. From 1 January 2003 forward, Volkswagen AG would be
7259-517: The chassis number The Bentley Arnage Le Mans chassis number follows the same identification as the Bentley Arnage Red label model: Bentley marked its 60 years of production at the Crewe factory with a special Diamond Series Arnage model in 2006. 60 cars were planned, the majority for the United States, with diamond wood inlays, diamond quilted leather seats, a stainless steel front bumper, special 19 inch alloy wheels, and Union Jack badges on
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#17327731691267378-501: The danger of valve float . Some engines are designed to open each intake valve at a slightly different time, which increases turbulence, improving the mixing of air and fuel at low engine speeds. More valves also provide additional cooling to the cylinder head. The disadvantages of multi-valve engines are an increase in manufacturing cost and a potential increase in oil consumption due to the greater number of valve stem seals. Some single overhead camshaft (SOHC) multi-valve engines (such as
7497-408: The end of 2006 after around 1,000 cars, with all car production reverting to the Crewe plant. Bentley presented Queen Elizabeth II with an official State Limousine in 2002 to celebrate her Golden Jubilee . Production of the two-door convertible Bentley Azure finished in 2003. It was replaced by a large luxury coupé powered by a W12 engine built in Crewe and named Bentley Continental GT . It
7616-569: The end of production of the Bentley S3 , which was replaced for October 1965 by the chassis-less monocoque construction T series . The Continental fastback coupé was aimed at the UK market, most cars, 164 plus a prototype , being right-hand drive. The chassis was produced at the Crewe factory and shared many components with the standard R type. Other than the R-Type standard steel saloon, R-Type Continentals were delivered as rolling chassis to
7735-403: The engine was still loosely based on the same design that was introduced in the 1959 Bentley S2 . However, the updated engine in 2008 shares no interchangeable parts with the 1950 model, the last common item having been replaced in 2005. When the engine was first unveiled promotional literature described power and torque as 'adequate'. Now twin-turbocharged, the all-aluminium alloy engine delivered
7854-552: The engine with and without turbocharger (65.5 kW/liter and 47.9 kW/liter respectively) in the Saab 900 and Saab 9000 . The 2.0-liter Nissan FJ20 was one of the earliest straight-4 mass-produced Japanese engines to have both a DOHC 16-valve configuration (four valves per cylinder, two intake, two exhaust) and electronic fuel injection (EFI) when released in October 1981 in the sixth generation Nissan Skyline . Peak output
7973-425: The extra weight of the 6.75 engine. The braking performance of the 1999 Green Label from 113–0 km/h was 172 feet (52 m) while the later Arnage T's performance was 182 feet (55 m) from the same speed. Revisions included: The glass headlight lens covers (1998–99) were revised to plastic (2000 on). Bentley cited customer demand as driving the reversion to the old two valve per cylinder 6.75-litre unit for
8092-647: The first Rolls-Royce Merlin aero-engine rolling off the production line five months later. 25,000 Merlin engines were produced and at its peak, in 1943 during World War II , the factory employed 10,000 people. With the war in Europe over and the general move towards the then new jet engines , Rolls-Royce concentrated its aero-engine operations at Derby and moved motor car operations to Crewe. Until some time after World War II , most high-end motorcar manufacturers like Bentley and Rolls-Royce did not supply complete cars. They sold rolling chassis , near-complete from
8211-669: The first appears to have been the 1969 Nissan Skyline , using the Nissan S20 six cylinder DOHC four-valve engine. This engine was also fitted to Nissan Fairlady Z432 racing edition. For a four-cylinder engine, the first mass-produced car using a four valves per cylinder engine was the British Ford Escort RS1600 , this car used the Cosworth BDA engine which was a Ford 'Kent' block with a Cosworth 16 valve twin cam cylinder head. The car went on to become
8330-415: The flow of intake and exhaust gases, thereby enhancing combustion , volumetric efficiency , and power output . Multi-valve geometry allows the spark plug to be ideally located within the combustion chamber for optimal flame propagation. Multi-valve engines tend to have smaller valves that have lower reciprocating mass , which can reduce wear on each cam lobe, and allow more power from higher RPM without
8449-414: The front wings. In September 2008, Bentley announced that Arnage production would cease in 2010, with a final run of 150 "Final Series" models. The Arnage Final Series used the Arnage T powertrain, including the twin-turbo 6.75-litre V8 engine that is rated at 507 PS (373 kW; 500 hp) and approximately 1,000 N⋅m (738 lb⋅ft) of torque. The Arnage delivers power to the rear-wheels via
8568-493: The head. After making five-valve Genesis engines for several years, Yamaha has since reverted to the cheaper four-valve design. Examples of the five-valve engines are the various 1.8 L 20vT engines manufactured by AUDI AG, the later versions of the Ferrari Dino V8 , and the 1.6 L 20-valve 4A-GE engine made by Toyota in collaboration with Yamaha. For a cylindrical bore and equal-area sized valves, increasing
8687-470: The historic sports-racing Bentley 4½ Litre and Bentley Speed Six ; the more recent Bentley R Type Continental, Bentley Turbo R , and Bentley Arnage ; to its current model line, including the Flying Spur , Continental GT and Bentayga which are marketed worldwide, with China as its largest market as of November 2012. Today most Bentley models are assembled at the company's Crewe factory , with
8806-431: The instrument panel forward. Each chassis was delivered to the coachbuilder of the buyer's choice. The biggest specialist car dealerships had coachbuilders build standard designs for them which were held in stock awaiting potential buyers. To meet post-war demand, particularly UK Government pressure to export and earn overseas currency, Rolls-Royce developed an all-steel body using pressings made by Pressed Steel to create
8925-499: The introduction of an entirely reworked version of the 6.75-litre V8 engine. Where the engine used in the Red Label was a quickly and less-than-completely-satisfactorily modified version of the Turbo R's unit, the RL featured an entirely reworked version of the old 6.75-litre V8. More than half of the engine's parts were completely new, with Bosch Motronic ME7.1.1 engine management replacing
9044-457: The long term. The key limiting factor of the BMW engine's output was the ZF 5HP30 transmission which was not rated to handle more than the 560 N⋅m (413 lb⋅ft) of torque that the twin-turbocharged engine was tuned to produce. Vickers had outsourced the production of the old 6.75-litre Rolls-Royce engine for use in the contemporary Continental R and Azure models to Cosworth, so reverting to
9163-691: The model on the market before it was fully developed. As a result, it was unreliable. During the March 1930 Blue Train Races , Barnato raised the stakes on Rover and its Rover Light Six , having raced and beaten Le Train Bleu for the first time, to better that record with his 6½-litre Bentley Speed Six on a bet of £100. He drove against the train from Cannes to Calais , then by ferry to Dover , and finally London, travelling on public highways, and won. Barnato drove his H.J. Mulliner –bodied formal saloon in
9282-504: The more-sporty Bentley model would use a special twin-turbocharged 354 PS (260 kW; 349 hp) and 420 lb⋅ft (569 N⋅m) of torque version of the company's 4.4-litre M62 V8 engine developed by Vickers subsidiary Cosworth Engineering . This Arnage was renamed the Arnage Green Label for the 2000 model year. In addition, from 2000 to 2001, a special edition "Birkin" was produced, celebrating Tim Birkin of
9401-513: The multi-valve concept. The 1975 Honda Civic introduced Honda's 1.5-liter SOHC 12-valve straight-4 engines. Nissan's 1988–1992 SOHC KA24E engine had three valves per cylinder (two intakes, one exhaust) as well. Nissan upgraded to DOHC after 1992 for some of their sports cars, including the 240SX . In 1988, Renault released a 12 valve version of its Douvrin 4 cylinder 2.0l SOHC. Mercedes and Ford produced three-valve V6 and V8 engines, Ford claiming an 80% improvement in high RPM breathing without
9520-408: The new Continental GT accounting for over one-third of total sales. The current workforce is about 4,000 people. The business earned a profit in 2011 after two years of losses as a result of the following sales results: On 23 March 2020, Bentley announced to halt production due to COVID-19 pandemic . In June 2020, Bentley announced that it will cut around 1,000 (one quarter of 4,200) job places in
9639-622: The new shares giving him control of the company and he became chairman. Barnato injected further cash into the business: £35,000 secured by debenture in July 1927; £40,000 in 1928; £25,000 in 1929. With renewed financial input, W. O. Bentley was able to design another generation of cars. The Bentley Boys were a group of British motoring enthusiasts that included Barnato, Sir Henry "Tim" Birkin , steeple chaser George Duller, aviator Glen Kidston , automotive journalist S.C.H. "Sammy" Davis , and Dudley Benjafield . The Bentley Boys favoured Bentley cars. Many were independently wealthy and many had
9758-913: The number of valves beyond five decreases the total valve area. The following table shows the effective areas of differing valve quantities as proportion of cylinder bore. These percentages are based on simple geometry and do not take into account orifices for spark plugs or injectors, but these voids will usually be sited in the "dead space" unavailable for valves. Also, in practice, intake valves are often larger than exhaust valves in heads with an even number of valves-per-cylinder: Turbocharging and supercharging are technologies that also improve engine breathing, and can be used instead of, or in conjunction with, multi-valve engines. The same applies to variable valve timing and variable-length intake manifolds . Rotary valves also offer improved engine breathing and high rev performance but these were never very successful. Cylinder head porting , as part of engine tuning ,
9877-406: The old Zytek system, and two small Garrett T3 turbochargers replacing the single large T4. This new engine was rated at 405 PS (298 kW; 399 hp) and 835 N⋅m (616 lb⋅ft) of torque and was said to be capable of meeting all future emissions requirements. The Arnage was now powered by a modern twin-turbocharged unit with state-of-the-art electronic management system similar to
9996-558: The old standby engine was a natural choice for the company. The Red Label model reverted to the old V8 engine, which boasted torque of 835 N⋅m (616 lbf⋅ft) with a single Garrett T4 turbocharger. This was the greatest amount of torque for a four-door car at the time. Also returning was the General Motors-sourced four-speed 4L80-E automatic transmission . In total only seven Arnage Green Label units were built, all of which were left-hand-drive versions. There
10115-658: The original novels , but this has been seen only briefly in the films . John Steed in the television series The Avengers also drove a Bentley. The new eight-litre was such a success that when Barnato's money seemed to run out in 1931 and Napier was planning to buy Bentley's business, Rolls-Royce purchased Bentley Motors to prevent it from competing with their most expensive model, the Phantom ;II. Bentley withdrew from motor racing just after winning at Le Mans in 1930, claiming that they had learned enough about speed and reliability. The Wall Street Crash of 1929 and
10234-592: The original 300 PS (221 kW; 296 hp) 3.0-liter version the Toyota 7 engine participated in endurance races as a 5.0-liter (4,968 cc) non-turbo V8 with DOHC and 32-valves. It produced 600 PS (441 kW; 592 hp) at 8,000 rpm (88.8 kW/liter) and 55.0 kg⋅m (539 N⋅m; 398 lb⋅ft) at 6,400 rpm. There is much discussion about which was the first 'mass-produced' car to use an engine with four valves per cylinder. For six cylinder engines, and considering special versions of mass-produced cars,
10353-417: The original BMW engined cars, and designated them as the "Arnage Green Label" for the 2000 model year . The most important modifications, to both Red and Green Label cars, gave them stiffer body-shells, and larger wheels and brakes . Both the stiffer body-shells and the larger brakes were necessitated by the extra heft of the large old British engine. Despite the larger brakes, braking performance worsened with
10472-426: The original Cosworth-BMW unit developed for the model in 1998. In 2002, Bentley updated the Red Label as the series two Arnage R . This model was launched to contrast the Arnage T, which was developed to be a more sporty variant. The Arnage R features two Garrett T3 turbochargers fitted to the engine as with the RL. The Arnage T , also from 2002, was claimed to be the most powerful roadgoing Bentley at its launch at
10591-478: The race against the Blue Train. Two months later, on 21 May 1930, he took delivery of a Speed Six with streamlined fastback "sportsman coupé" by Gurney Nutting . Both cars became known as the " Blue Train Bentleys "; the latter is regularly mistaken for, or erroneously referred to as being, the car that raced the Blue Train, while in fact Barnato named it in memory of his race. A painting by Terence Cuneo depicts
10710-468: The rear doors). The suspension was retuned for the added weight, allowing the larger car to still handle well. RL models were available with armoured elements, reflecting the car's clientele. A full B6 package was available for $ 243,000 to $ 300,000, offering protection from assault weapons and grenades . Though not particularly well advertised for reasons stated above, the LWB&;RL's introduction saw
10829-521: The resulting Great Depression throttled the demand for Bentley's expensive motor cars. In July 1931 two mortgage payments were due which neither the company nor Barnato, the guarantor, were able to meet. On 10 July 1931 a receiver was appointed. Napier offered to buy Bentley with the purchase to be final in November 1931. Instead, British Central Equitable Trust made a winning sealed bid of £125,000. British Central Equitable Trust later proved to be
10948-605: The rights to the use of the Rolls-Royce name or logo, which are owned by Rolls-Royce Holdings plc. In 1998, BMW started supplying components for the new range of Rolls-Royce and Bentley cars—notably V8 engines for the Bentley Arnage and V12 engines for the Rolls-Royce Silver Seraph , however, the supply contract allowed BMW to terminate its supply deal with Rolls-Royce with 12 months' notice, which would not be enough time for Volkswagen to re-engineer
11067-515: The same ZF automatic transmission as used on the other Arnage models. On the exterior, the Final Series features unique 20 inch alloy wheels , a retractable 'Flying B' hood ornament, body-coloured headlamp bezels, dark tint mesh upper and lower grilles, lower front wing vents, a 'Jewel-style' fuel filler cap and special badging. The interior, designed by Mulliner, features Final Series kick plates, drilled alloy pedals, unique chrome trim,
11186-478: The smaller and much lighter BMW 32-valve V8. Coupled with an outdated 4-speed automatic gearbox from General Motors , the engine was extremely thirsty, and would not meet government-imposed emissions standards without hasty modifications. The revised version of the car was launched as the Arnage Red Label in October 1999. At the same time, but without fanfare, Bentley made several minor modifications to
11305-611: The sole provider of cars with the "Bentley" marque. BMW established a new legal entity, Rolls-Royce Motor Cars Limited, and built a new administrative headquarters and production facility for Rolls-Royce branded vehicles in Goodwood , West Sussex, England. After acquiring the business, Volkswagen spent £ 500 million (about US$ 845 million) to modernise the Crewe factory and increase production capacity. As of early 2010, there are about 3,500 working at Crewe, compared with about 1,500 in 1998 before being taken over by Volkswagen. It
11424-402: The spark plugs. Only two cars were built. Ferrari developed their Quattrovalvole (or QV) engines in the 80s. Four valves per cylinder were added for the 1982 308 and Mondial Quattrovalvole , bringing power back up to the pre- FI high of 245 hp (183 kW) . A very unusual Dino Quattrovalvole was used in the 1986 Lancia Thema 8.32 . It was based on the 308 QV's engine, but used
11543-516: The world speed record of 170 km/h. Robert Peugeot also commissioned the young Ettore Bugatti to develop a GP racing car for the 1912 Grand Prix. This chain-driven Bugatti Type 18 had a 5-litre straight-4 with SOHC and three valves per cylinder (two inlet, one exhaust). It produced appr. 100 bhp (75 kW; 101 PS) at 2800 rpm (0.30 bhp per cubic inch) and could reach 99 mph (159 km/h). The three-valve head would later be used for some of Bugatti's most famous cars, including
11662-492: The world to have an engine with two overhead camshafts and four valves per cylinder was the 1912 Peugeot L76 Grand Prix race car designed by Ernest Henry . Its 7.6-litre monobloc straight-4 with modern hemispherical combustion chambers produced 148 bhp (110 kW) (19.5 HP/Liter(0.32 bhp per cubic inch)). In April 1913, on the Brooklands racetrack in England, a specially built L76 called "la Torpille" (torpedo) beat
11781-466: Was facelifted in 2005, with a front end resembling that of the new Continental GT and old Continental R . The Bentley State Limousine is an official state car developed by Bentley Motors Limited for Queen Elizabeth II on the occasion of her Golden Jubilee in 2002. Two were built. The car's twin-turbocharged, 6.75-litre V8 engine was modified and rated at 402 PS (296 kW; 397 hp) and 835 N⋅m (616 lb⋅ft) of torque. For
11900-464: Was 148 hp (110 kW) at 6,000 rpm and 133 lb⋅ft (180 N⋅m) at 4,800 rpm. The FJ20 was also offered with a turbocharger, producing 188 hp (140 kW) at 6,400 rpm and 166 lb⋅ft (225 N⋅m) at 4,800 rpm. Following Nissan's lead, Toyota released the 1.6-liter (1,587 cc) 4A-GE engine in 1983. The cylinder head was developed by Yamaha Motor Corporation and was built at Toyota's Shimayama plant. While originally conceived of as
12019-605: Was Bugattis clean sweep of the first four places at Brescia in 1921. In honour of this memorable victory all 16-valve-engined Bugattis were dubbed Brescia . From 1920 through 1926 about 2000 were built. Peugeot had a triple overhead cam 5-valve Grand Prix car in 1921. Bentley used multi-valve engines from the beginning. The Bentley 3 Litre , introduced in 1921, used a monobloc straight-4 with aluminium pistons, pent-roof combustion chambers , twin spark ignition, SOHC, and four valves per cylinder. It produced appr. 70 bhp (0.38 bhp per cubic inch). The 1927 Bentley 4½ Litre
12138-468: Was a 419.6 cid (6.9-liter) straight-8 with DOHC, 4 valves per cylinder and a supercharger. It achieved 400 bhp (298.3 kW) at 5,000 rpm and 0.95 bhp per cubic inch. The 1937 Mercedes-Benz W125 racing car used a supercharged 5.7-liter straight-8 with DOHC and four valves per cylinder. The engine produced 592-646 bhp (441.5-475 kW) at 5800 rpm and achieved 1.71-1.87 bhp per cubic inch (77.8-85.1 kW/liter). The W125 top speed
12257-563: Was a final series of cars built in 2000 with the 4.4-litre BMW engine designated the Arnage Birkin, of which 52 units were produced and are distinguishable by their three-dial as opposed to five-dial instrument center dashboard configuration. A long- wheelbase version of the Red Label was launched at the North American International Auto Show in 2001. The Red Label models were replaced in 2002 by
12376-531: Was an asset to the bootleggers of that era. Multi-valve engines continued to be popular in racing and sports engines. Robert M. Roof, the chief engineer for Laurel Motors, designed his multi-valve Roof Racing Overheads early in the 20th century. Type A 16-valve heads were successful in the teens, Type B was offered in 1918 and Type C 16-valve in 1923. Frank Lockhart drove a Type C overhead cam car to victory in Indiana in 1926. Bugatti also had developed
12495-484: Was appr. 200 mph (322 km/h). The 1967 Cosworth DFV F1 engine, a NA 3.0-liter V8 producing appr. 400 bhp (298 kW; 406 PS) at 9,000 rpm (101.9 kW/liter), featured four valves per cylinder. For many years it was the dominant engine in Formula One, and it was also used in other categories, including CART , Formula 3000 and Sportscar racing . Debuting at the 1968 Japanese Grand Prix in
12614-434: Was broken for the first time with sales of 10,014. For 2007, a record profit of € 155 million was also announced. Bentley reported a sale of about 7,600 units in 2008. However, its global sales plunged 50 percent to 4,616 vehicles in 2009 (with the U.S. deliveries dropped 49% to 1,433 vehicles) and it suffered an operating loss of € 194 million, compared with an operating profit of € 10 million in 2008. As
12733-627: Was confirmed in April 2005 a four-seat convertible Azure derived from the Arnage Drophead Coupé prototype would begin at Crewe in 2006. By the autumn of 2005, a convertible version of the successful Continental GT, the Continental GTC , was also presented in the autumn of 2005. These two models were launched in late 2006. A limited run of a Zagato modified GT was also announced in March 2008, dubbed " GTZ ". A new version of
12852-580: Was forced into receivership and the UK government nationalised the company—splitting it into an aerospace company (Rolls-Royce Plc) and an automotive company (Rolls-Royce Motors Limited, including Bentley). Rolls-Royce Motors was subsequently sold to engineering conglomerate Vickers, and in 1998 Vickers sold Rolls-Royce to Volkswagen AG, including Bentley with its name and logos (but not the name "Rolls Royce"). Before World War I , Walter Owen Bentley and his brother, Horace Millner Bentley, sold French DFP cars in Cricklewood, North London, but W.O, as Walter
12971-760: Was known, always wanted to design and build his own cars. At the DFP factory, in 1913, he noticed an aluminium paperweight and thought that aluminium might be a suitable replacement for cast iron to fabricate lighter pistons. The first Bentley aluminium pistons were fitted to Sopwith Camel aero engines during the First World War. The same day that the Paris Peace Conference to end World War I started, Walter Owen ("W.O.") Bentley founded Bentley Motors Limited, on 18 January 1919 and registered Bentley Motors Ltd. in August 1919. In October he exhibited
13090-497: Was later increased to 3.0 litres and increased power output to 828 hp (617 kW). The 1984 Ferrari Testarossa had a 4.9-liter flat-12 with four valves per cylinder. Almost 7,200 Testarossa were produced between 1984 and 1991. In 1985 Lamborghini released a Countach Quattrovalvole , producing 455 PS (335 kW; 449 hp) from a 5.2-liter (5167 cc) Lamborghini V12 engine (64.8 kW/liter). The Mercedes-Benz 190E 2.3-16 with 16-valve engine debuted at
13209-492: Was of similar engine design. The NA racing model offered 130 bhp (0.48 bhp per cubic inch) and the 1929 supercharged 4½ Litre (Blower Bentley) reached 240 bhp (0.89 bhp per cubic inch). The 1926 Bentley 6½ Litre added two cylinders to the monobloc straight-4. This multi-valve straight-6 offered 180-200 bhp (0.45-0.50 bhp per cubic inch). The 1930 Bentley 8 Litre multi-valve straight-6 produced appr. 220 bhp (0.45 bhp per cubic inch). In 1931
13328-496: Was raised to 7.25:1. The problems of Bentley's owner with Rolls-Royce aero engine development, the RB211 , brought about the financial collapse of its business in 1970. The motorcar division was made a separate business, Rolls-Royce Motors Limited, which remained independent until bought by Vickers plc in August 1980. By the 1970s and early 1980s Bentley sales had fallen badly; at one point less than 5% of combined production carried
13447-403: Was reported that Volkswagen invested a total of nearly US$ 2 billion in Bentley and its revival. As a result of upgrading facilities at Crewe the bodywork now arrives fully painted at the Crewe facility for final assembly, with the parts coming from Germany—similarly Rolls-Royce body shells are painted and shipped to the UK for assembly only. Demand had been so great that the factory at Crewe
13566-410: Was the 1922 Indianapolis 500 , a race dominated by specialized cars with Duesenberg racing chassis. They entered a modified road car driven by works driver Douglas Hawkes , accompanied by riding mechanic H. S. "Bertie" Browning. Hawkes completed the full 500 miles (800 km) and finished 13th with an average speed of 74.95 miles per hour (120.62 km/h) after starting in 19th position. The team
13685-401: Was the first Alfa Romeo DOHC engine. It had four valves per cylinder, 90-degree valve angle and twin-spark ignition. The GP engine had a displacement of 4.5-liter (4490 cc) and produced 88 bhp (66 kW) at 2950 rpm (14.7 kW/liter), and after modifications in 1921 102 bhp (76 kW) at 3000 rpm. The top speed of this car was 88-93 mph (140–149 km/h). It wasn't until
13804-474: Was then rushed back to England to compete in the 1922 RAC Tourist Trophy . In an ironic reference to his heavyweight boxer 's stature, Captain Woolf Barnato was nicknamed "Babe". In 1925, he acquired his first Bentley, a 3-litre. With this car, he won numerous Brooklands races. Just a year later, he acquired the Bentley business itself. The Bentley enterprise was always underfunded, but inspired by
13923-553: Was unable to meet orders despite an installed capacity of approximately 9,500 vehicles per year; there was a waiting list of over a year for new cars to be delivered. Consequently, part of the production of the new Flying Spur , a four-door version of the Continental GT, was assigned to the Transparent Factory (Germany), where the Volkswagen Phaeton luxury car was also assembled. This arrangement ceased at
14042-405: Was used in the 1983 BMW M6 35CSi and in the 1985 BMW M5 . The 1978 Porsche 935/78 racer used a twin turbo 3.2-liter flat-6 (845 bhp/630 kW@8,200 rpm; 784 Nm/578 ft.lbs@6,600 rpm). The water-cooled engine featured four valves per cylinder and output a massive 196.2 kW/liter. Porsche had to abandon its traditional aircooling because the multi-valve DOHC hampered aircooling of
14161-493: Was well received by the motoring press, with most critics admiring the unimpeachable image but criticising the price and running cost. The Bentley Arnage was replaced by the Bentley Mulsanne. The design of the car is now completely independent from Rolls-Royce cars, because of separate parent companies, Bentley being held by the Volkswagen Group , Rolls-Royce by BMW . Bentley Motors Bentley Motors Limited
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