Wednesday, July 18, 2007

Bugatti Veyron 253mph














The Bugatti Veyron 16.4 is currently the fastest, most powerful, and most expensive street-legal full production car in the world, with a proven top speed of 407.5 km/h (253 mph), though several faster or more expensive vehicles have been produced on a limited basis.[1] It reached full production in September 2005. The car is built by Volkswagen AG subsidiary Bugatti Automobiles SAS in its Molsheim (Alsace, France) factory and is sold under the Italian/French Bugatti marque. It is named after French racing driver Pierre Veyron, who won the 24 hours of Le Mans in 1939 while racing for the original Bugatti firm.

The Veyron features a W16 engine—16 cylinders in 4 banks of 4 cylinders, or the equivalent of two narrow-angle V8 engines mated in a "W" configuration. Each cylinder has 4 valves, for a total of 64, but the narrow V8 configuration allows two camshafts to drive two banks of cylinders so only 4 camshafts are needed. The engine is fed by four turbochargers, and it displaces 8.0 L (7,993 cc/488 in³) with a square 86 by 86 mm bore and stroke.

Putting this power to the ground is a dual-clutch DSG computer-controlled manual transmission with 7 gear ratios via shifter paddles behind the steering wheel boasting an 8 ms shift time. The Veyron can be driven by full automatic transmission. The Veyron also features full-time all-wheel drive based on the Haldex system. It uses special Michelin run-flat tires designed specifically for the Veyron to accommodate the vehicle's top speed.

Curb weight is estimated at 1890 kg (4,160lb). This gives the car a power to weight ratio of 529 bhp/tonne.

The car's wheelbase is 2710 mm (106.3 in). Overall length is 4462 mm (175.8 in). It measures 1998 mm (78.7 in) wide and 1206 mm (47.5 in) tall.

The Bugatti Veyron has a total of 10 radiators.[2]

* 3 radiators for the engine cooling system.
* 1 heat exchanger for the air to liquid intercoolers.
* 2 for the air conditioning system.
* 1 transmission oil radiator.
* 1 differential oil radiator.
* 1 engine oil radiator.
* 1 hydraulic oil radiator for the spoiler.

According to Volkswagen, the final production Veyron engine produces between 1020 and 1040 metric hp (1006 to 1026 SAE net hp), so the car will be advertised as producing "1001 horsepower" in both the US and European markets, despite the fact that the actual amount of horsepower produced is 986 - making it the second most powerful road production car - second only to the Koenigsegg CCXR, which it is claimed develops 1004bhp, although further testing in the Koenigsegg laboratories has proven it can hit 1064bhp.

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