Bugatti Technology IN & OUT..

Variable aerodynamics

An incredible high-tech solution

This interactive feature allows you to experience the three handling modes of the Bugatti Veyron, based on the Grand Sport Vitesse. With a top speed of 410 km/h, it is the fastest production roadster ever. In order to guarantee optimum handling at all times with this level of power, the supercar needs a harmonious balance between lift and downforce at all speeds.

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Vehicle structure and assembly

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• Very few parts, components or systems from existing vehicle concepts could be used in the Veyron. Everything had to be developed from scratch to achieve the required performance before being incorporated into the vehicle. When creating the Veyron, designers regularly drew inspiration from other industries which required extreme speeds and demanded extreme stress loads from materials and systems.

Engine

• The heart and soul of the Veyron is the 8-litre W16 engine with four turbochargers, which initially generated 1,001 PS, and an incredible 1,200 PS in later models. The engine is fully capable of operating under a continuous full load, a feat that engines designed for use in motor racing cannot achieve.

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Gearbox

• The Veyron is equipped with the dual-clutch gearbox (DSG), which is the fastest gearbox in the world. Bugatti was the first manufacturer to use a seven-speed variant of the DSG. Designed specially for the new sports car, this gearbox has a job which any other gearbox would baulk at, i.e. to transfer engine torque of up to 1,500 Nm to the road surface.

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Adaptive boost-pressure fuel injection

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• In a high-performance vehicle such as the Veyron, it is essential that the engine is always supplied with constant fuel pressure. This also required a new development, and so Bugatti invented three-phase injection pumps which, unlike conventional plus/minus polarised pumps, are able to supply the engine with the required amounts of fuel continuously at a constant pressure.

Brakes

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• At the time, the brakes on the Veyron were by far the most powerful brake system in the automotive industry. The ceramic discs, with a diameter of 400 mm and 38 mm thickness at the front axle, and a diameter of 380 mm and 36 mm thickness at the rear, were pioneering technology at the time in terms of material, size and structure for further developments in the super sports car area. With the help of the active rear wing, decelerations from high speeds were thus achieved at far more than 2 g, which corresponds, for example, at 320 km/h to a braking output of 5,600 kW. The ESP is fully operational all the way to the top speed of about 385 km/h, achievable in handling mode, which itself has been tested and released in very elaborate and unprecedented trial runs in September 2005 on the Black Rock Desert Salt Lake in the U.S. on low friction numbers.

Cooling

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• Cooling is an extremely important aspect of the Veyron. Sophisticated airflow patterns were devised to conduct sufficient cooling air to the vehicle’s radiators and extract hot air without compromising the vehicle design – a key consideration.
  
  
  During combustion, some 2,400 HP of additional heat is generated for every 1,200 HP of drive power. To cope with this, the Bugatti engine has two water circuits. The larger circuit contains 40 litres of coolant water in three coolers in the front section of the vehicle to keep the engine at operating temperature