Bugatti Type 64
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This is a list of prototype vehicles created by
Bugatti Automobiles Ettore Bugatti was a German then French manufacturer of high-performance automobiles. The company was founded in 1909 in the then-German city of Molsheim, Alsace, by the Italian-born industrial designer Ettore Bugatti. The cars w ...
that never reached full production.


Type 36

The Type 36 racer was produced in 1925, and introduced a new 1.5 L (1493 cc/91 in³)
straight-8 The straight-eight engine (also referred to as an inline-eight engine; abbreviated I8 or L8) is a piston engine with eight cylinders arranged in a straight line along the crankshaft. The number of cylinders and perfect primary and secondary eng ...
engine. With a 60 by 66 mm bore and stroke, the engine later found a place in the Type 39A, though the Type 36 project was more of an experiment. At first, the rear axle was bolted directly to the frame with no springs. In 1926, Bugatti added both springs and a supercharger to the Type 36. This was the experimental base for the Type 35C.


Type 45

The 16-cylinder Type 45 racing car and similar Type 47 "Grand Sport" were to become a new generation of cars from Bugatti. The engine, a 3-valve SOHC design, was based on the 3-valve straight-8 from the Type 35. Two versions were made: A 3.0 L (2986 cc/182 in³) version fitted to a Type 47 prototype shared the Type 36's 60 by 66 mm dimensions, while the Type 45 prototype used a unique 84 mm stroke for 3.8 L (3801 cc/231 in³). Output would have been 200 to 250 hp (149 to 186 kW) with a Roots-type supercharger in play. The entire vehicle was unique, including its chassis. The Type 45 used a 102.2 in (2596 mm) wheelbase, while the Type 47 was stretched to 108.3 in (2750 mm). Both had a 49.2 in (1250 mm) track. File:Bugatti Type 45 01.jpg, Type 45 front right File:Bugatti Type 45 02.jpg, Type 45 front File:Bugatti Type 45 04.jpg, Type 45 front left File:Bugatti Type 47 4.jpg, Type 47 left File:Bugatti Type 47 2.jpg, Type 47 front left File:Bugatti Type 47 3.jpg, Type 47 engine left File:Bugatti old engine.JPG, Type 47 engine right


Type 56

The Type 56 was an
electric vehicle An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes cha ...
. The number built is controversial; six seems the most likely answer. The Bugatti 56 was originally designed for private use by
Ettore Bugatti Ettore Arco Isidoro Bugatti (15 September 1881 – 21 August 1947) was an Italian-born French automobile designer and manufacturer. He is remembered as the founder and proprietor of the automobile manufacturing company Automobiles E. Bugatti, wh ...
as a factory runabout, but due to popular demand from previous customers convinced him to build some extra types 56. The Type 56 was a tiny 2-seat open car very much in the style of turn-of-the-century horseless carriages or
voiturette A voiturette is a miniature automobile. History ''Voiturette'' was first registered by Léon Bollée in 1895 to name his new motor tricycle. The term became so popular in the early years of the motor industry that it was used by many makers t ...
s. Power came from a single 28 amp electric motor producing 1 hp (0.8 kW). Energy was stored in six 6 volt accumulators in series for a total of 36 volts. The motor was mounted directly to the frame and drove the rear wheels through gears. Electric braking was allowed, and both hand- and foot-brakes operated on rear wheel drums. Four forward speeds were available, and the vehicle could accelerate to 28 km/h (17.4 mph). Steering was by tiller. Ettore Bugatti's personal 56 is part of the collection at the Musée National de l'Automobile de Mulhouse. File:Bugatti Type Phaeton Biplace 1931 Mulhouse FRA 001.JPG, Type 56 front right File:Bugatti Phaëton twoseater 1.2cv (used by Ettore Bugatti to move around in his factory), pic2.JPG, Type 56 front File:Bugatti Phaëton twoseater 1.2cv (used by Ettore Bugatti to move around in his factory), pic1.JPG, Type 56 front left


Type 64

The
Bugatti Automobiles Ettore Bugatti was a German then French manufacturer of high-performance automobiles. The company was founded in 1909 in the then-German city of Molsheim, Alsace, by the Italian-born industrial designer Ettore Bugatti. The cars w ...
Type 64 was an
Atlantic The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe an ...
-style
coupe A coupe or coupé (, ) is a passenger car with a sloping or truncated rear roofline and two doors. The term ''coupé'' was first applied to horse-drawn carriages for two passengers without rear-facing seats. It comes from the French past parti ...
produced in 1939 with papillon rench for "butterfly"doors, designed by
Jean Bugatti Jean Bugatti (15 January 1909 – 11 August 1939) was an automotive designer and test engineer for Bugatti. He was the son of Bugatti's founder Ettore Bugatti. Biography Born Gianoberto Maria Carlo Bugatti in Cologne, he was the eldest son ...
. It was fitted with a 4.4 L (4432 cc/270 in³) 2-valve
DOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion c ...
straight-8 The straight-eight engine (also referred to as an inline-eight engine; abbreviated I8 or L8) is a piston engine with eight cylinders arranged in a straight line along the crankshaft. The number of cylinders and perfect primary and secondary eng ...
engine and rode on a 130 in (3300 mm) wheelbase. Three cars were started, but only one body was finished before Jean Bugatti's death in 1939; a second was completed in 2012. File:1939 Bugatti Type 64 Coach 4 places 8cyl 4432cc 170hp photo 1.JPG, Type 64 front right File:1939 Bugatti Type 64 Coach 4 places 8cyl 4432cc 170hp photo 3.JPG, Type 64 front File:1939 Bugatti Type 64 Coach 4 places 8cyl 4432cc 170hp photo 2.JPG, Type 64 front left


Type 73C

Begun in 1943 and completed in 1947 after the war, the Type 73C was to be a comeback for Bugatti. But the death of
Ettore Bugatti Ettore Arco Isidoro Bugatti (15 September 1881 – 21 August 1947) was an Italian-born French automobile designer and manufacturer. He is remembered as the founder and proprietor of the automobile manufacturing company Automobiles E. Bugatti, wh ...
in August of that year doomed the project. An engine-less Type 73 was shown at the 1947
Paris Motor Show The Paris Motor Show (french: Mondial de l'Automobile) is a biennial auto show in Paris. Held during October, it is one of the most important auto shows, often with many new production automobile and concept car debuts. The show presently take ...
two months later. Although five 73C chassis had been constructed in
Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...
, Only one body was completed for these cars and at least three engines and one complete car were assembled and tested by the factory. Serge Pozzoli stated that he visited the Bugatti factory at Rue Debarcadere in Paris where he saw a demonstration car which was fitted with a scaled down body similar to the pre-war Type 50BIII (Cork Car). All the cars were dismantled and taken to Molsheim after Ettore Bugatti's death. The Type 73C used a new 1.5 L (1488 cc/90 in³)
straight-4 A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...
engine with 4 valves per cylinder and a
twin overhead cam An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion cha ...
shaft. This was a new design with a 76 mm bore and 95 mm stroke, wet cylinder liners, a detachable cylinder head, and a single cast iron exhaust manifold. Much to the chagrin of Bugatti purists, the Type 73 used off-the-shelf hex fasteners rather than the custom-designed parts used in all previous cars. The five Type 73C chassis were sold off after the company exited automobile production. Most were later assembled, and one (number 2) was even given a body based on the original Bugatti drawings. There are several prototype Type 73 Bugatti models. Type 73: Touring two- or four-seater; four-cylinder, twin overhead camshaft, four valves per cylinder Type 73A: Touring two- or four-seater four-cylinder Single overhead camshaft with three valves per cylinder. Type 73C: Grand Prix single seater: The engine fitted to this car is similar to the Type 73 Type 73B: touring two- or four-seater: Similar engine to the Type 73 but with single overhead camshaft. File:1945 Bugatti Type 73C.jpg, Type 73C File:Bugatti Type 73C at Goodwood Revival 2012.jpg, Type 73C with engine cover off File:Bugatti Coach Type 73A pic3cr.jpg, Type 73A front left File:Bugatti Coach Type 73A pic4.JPG, Type 73A front right File:Bugatti Coach Type 73A pic2.JPG, Type 73A rear right


Type 251

The final resurgence of the original Bugatti was the Type 251, completed in 1955. Designed by
Gioacchino Colombo Gioachino Colombo (1903–1988) was an Italian automobile engine designer. Colombo was born in Legnano. He began work as an apprentice to Vittorio Jano at Alfa Romeo. In 1937, Colombo designed the 158 engine for the Alfetta and caught the attenti ...
of
Ferrari Ferrari S.p.A. (; ) is an Italian luxury sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari (1898–1988) in 1939 from the Alfa Romeo racing division as ''Auto Avio Costruzioni'', the company built its first car in ...
fame, it was powered by a new 2.5 L (2486 cc/151 in³)
straight-8 The straight-eight engine (also referred to as an inline-eight engine; abbreviated I8 or L8) is a piston engine with eight cylinders arranged in a straight line along the crankshaft. The number of cylinders and perfect primary and secondary eng ...
. Uniquely, this engine was mounted transversely, behind the driver. For the first time in a Bugatti, an oversquare engine was used with a 76 mm bore and 68.5 mm stroke. A
de Dion tube De Dion rear axle A de Dion tube is a form of non-independent automobile suspension. It is a considerable improvement over the swing axle, Hotchkiss drive, or live axle. Because it plays no part in transmitting power to the drive wheels, it is ...
rear suspension was also a novelty for the company, though it was in vogue at the time. The Type 251 was entered in the 1956 French Grand Prix, driven by
Maurice Trintignant Maurice Bienvenu Jean Paul Trintignant (30 October 1917 – 13 February 2005) was a motor racing driver and vintner from France. He competed in the Formula One World Championship for fourteen years, between 1950 and 1964, one of the longest caree ...
, but was not competitive and retired after 18 laps. File:Bugatti Type 251 - Usine Bugatti de Molsheim.jpg, In front of the Bugatti factory in
Molsheim Molsheim () is a commune and a subprefecture in the Bas-Rhin department in Grand Est in north-eastern France.
File:Bugatti Type 251 - Maurice Trintignant et Roland Bugatti.jpg, With pilot
Maurice Trintignant Maurice Bienvenu Jean Paul Trintignant (30 October 1917 – 13 February 2005) was a motor racing driver and vintner from France. He competed in the Formula One World Championship for fourteen years, between 1950 and 1964, one of the longest caree ...
File:Bugatti GP Type 251.jpg, Right side File:Bugatti 251 Cockpit.JPG, Cockpit File:Bugatti 251 1.JPG, Rear File:Bugatti 251 2.JPG, Without the front cover File:Bugatti 251 Motor.JPG, Engine File:1955 Bugatti GP 251, 8 cylinder, 230hp, 2421cm3, 260kmh, photo 2.JPG, Front


References

{{F1 cars 1956, nocat=yes
Prototypes A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to ...
Bugatti concept vehicles