Wednesday, June 25, 2008

Bugatti Veyron


252mph, 1001PS, 16 cylinders, four turbos, 8.0-litres... the Veyron's numbers are staggering. It can hit 60mph in 2.5 seconds thanks to four-wheel-drive traction, shoots to 125mph in 7.3 seconds and reaches 200mph in less than 20. The Veyron 16.4 is the most powerful, most expensive, and fastest street-legal production car in the world , with a proven top speed of over 400 km/h (407 km/h or 253 mph top speed).

The obvious question: Why would anyone build such a car? Surely no one sees doing 250 mph on the highway. There can be no commercial logic behind such a crazy machine, even with the Veyron's price tag of one million euros (at the current exchange rate, that's $1.2 million). Not even as a "halo model" -- a reputation booster -- for the VW group that builds it does the Veyron make sense. No Bugatti owner wants it known he's driving a Volkswagen.

Bugatti Veyron Data

Base Price :1,000,000 euros
(1,300,000 USD)

Power : 1000 hp
Zero to 60 mph : 2.5 s
Zero to 100 mph: 6 s
Top speed : 253 mph (407 km/h)

History

Development of the Veyron began with the 1999 EB 18/4 "Veyron" concept car . Introduced at the Tokyo Motor Show , it was similar in design and appearance to the final Veyron production car. One major difference was the EB 18/4's use of a W18 engine with three banks of six cylinders. The Veyron was designed by Hartmut Warkuss of Volkswagen rather than Giorgetto Giugiaro of ItalDesign who had handled the three prior Bugatti concepts.


Development continued throughout 2001 and the EB 16/4 Veyron was promoted to "advanced concept" status. In late 2001 Bugatti announced that the car, officially called the Bugatti Veyron 16.4 , would go into production in 2003. The car experienced significant problems, however. High-speed stability was difficult, with one prototype destroyed in a crash and another spun out during a press demonstration at the Monterey Historics event in Mazda Raceway at Laguna Seca . Production of the Veyron was delayed indefinitely.

After the release of the car, it has become known that while each Veyron is being sold for £840,000, the production costs of the car are approximately £5 million per vehicle. As Bugatti, and therefore Volkswagen, are making such a huge loss, it has been likened by influential journalist Jeremy Clarkson to Concorde ; both are largely impractical experiments in technology and ground-breaking performance created just to prove that it could be done. A car the like of the Bugatti Veyron may not be seen in production again for some time to come, if at all.

Technology

Bugatti Veyron engineThe 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 vee 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 cm³/488 in³) with a square 86 by 86 mm bore and stroke.


The Veyron's 16-cylinder engine is based on the innovative "W" design introduced in the 2003 Volkswagen Passat. The Veyron's version features two 90-degree V8s offset by 15 degrees. The offset allows each cylinder to be placed close to its neighbor, which reduces the total size of the massive 8.0-liter engine. A Formula 1?style dry-sump lubrication system keeps the engine moving smoothly. It's easier to spin many small turbochargers than one or two large ones, so Bugatti employs four turbos to reduce boost lag. The strategy works: The engine creates 922 lb.-ft. of torque at only 2,200 rpm.


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. Or it can be driven by full automatic transmission. The Veyron also features full-time all wheel drive , necessary given the output of the engine. It uses special Michelin PAX System run-flat tires, which had to be designed specifically for the Veyron, and which are capable of running at 402 km/h (253 mph).

The car's wheelbase is 2700 mm (106.3 in). Overall length is 4466 mm (175.8 in). It measures 1998 mm (78.7 in) wide and 1206 mm (47.5 in) tall. Curb weight is expected to reach 4300 lb (1950 kg) with a power to weight ratio of 513.3 hp per ton (metric) or 4.36 lb/hp (SAE).The Bugatti Veyron has a total of 10 radiators.

Friday, May 30, 2008

The Fastest and most expensive production car ever

2008 Bugatti Veyron 16.4

The Bugatti Veryron is, by every measure, the world's fastest production road car. It's the quickest to 60, it has the highest top speed, and it can absolutely dominate a track.

With a claimed 1001 horsepower, the Veyron is a major technical achievement. Its engine has 16 cylinders, essentially formed by joining two V8 engines at the crank.

This W16 powerplant displaces 8.0 liters and features ten radiators for everything from the engine cooling systems to the air conditioner.


The $1.3 million Veyron will reach a top speed of 253 mph - a speed it can maintain for 12 minutes before all the fuel is gone. Power is transmitted to the pavement via four-wheel-drive and a seven-speed dual-clutch automated manual transmission.


The car can hit 60 mph in just 2.5 seconds, 100 mph in 5.5 seconds, and 150 mph in 9.8 seconds. Getting to 200 mph takes 18.3 seconds, and 250 mph takes 42.3 seconds.


A special key is required to "unlock" the Veyron's top speed of 250+ mph. The car is then lowered to just 3.5 inches from the ground. A hydraulic spoiler extends at speed, and it can also serve as an air brake.The Veyron weighs a hulking 4,160 lbs, but even its harshest critics admit its handling is surprisingly sharp. Gordon Murray, designer of the McLaren F1 was very skeptical of the Veyron during its development, but after driving the finished car, he conceded it is a "huge achievement."



Specifications

Base Price : $1,400,000

Engine

Engine Type : Quad-Turbo W16

Displacement : 8.0L/487.8

Fuel System : DOHC VVT

SAE Net Horsepower @ RPM : 1001 @ 6000

SAE Net Torque @ RPM : 922 @ 2200

Transmission

Drivetrain : 4-Wheel Drive

Trans Type : 7

Trans Description Cont. : DSG (automated manual)

First Gear Ratio (:1) : 3.18

Second Gear Ratio (:1) : 2.26

Third Gear Ratio (:1) : 1.68

Fourth Gear Rato (:1) : 1.29

Fifth Gear Ratio (:1) : 1.06

Sixth Gear Ratio (:1) : 0.88

Final Drive Axle Ratio (:1) : 2.47:1 Front, 3.64:1 Rear

Seventh Gear Ratio (:1) : 0.80

Weight Information

Base Curb Weight (lbs) : 4470

Suspension

Suspension Type – Front : Control Arms w/Coil Springs

Suspension Type – Rear : Control Arms w/Coil Springs

Brakes

Brake Type : 4-Wheel

Brake ABS System : Yes

Disc - Front (Yes or) : Yes

Disc - Rear (Yes or) : Yes

Front Brake Rotor Diam x Thickness (in) : 15.8 x -

Rear Brake Rotor Diam x Thickness (in) : 15.0 x -

Tires

Front Tire Size: 265/680ZR500A 99Y

Rear Tire Size : 365/710ZR540A 108Y

Wheels

Front Wheel Size (in) : 20 x 11.2

Rear Wheel Size (in) : 21 x 14.4

Front Wheel Material : Aluminum

Rear Wheel Material : Aluminum

Exterior Dimensions

Wheelbase (in) : 106.7

Length, Overall (in) : 175.7

Width, Max w/o mirrors (in) : 78.7

Height, Overall (in) : 47.4

Tread Width, Front (in) : 67.9

Tread Width, Rear (in) : 64.2

Interior Dimensions

Passenger Capacity : 2

Summary

Body Style : 2 Door Coupe