Bugatti Veyron
Not just a super car that carries on the name of racing driver Pierre Veyron, who, while racing for the original Bugatti car manufacturer, won the 24 hours of Le Mans in 1939, Bugatti Veyron 16.4 is the second fastest car in the world and the most powerful, it can easily pass as a super hero`s car like Batman. It has the fastest acceleration speed, reaching 60 mph in 2.5 seconds.Endowed with a 8.0L W16-Cylinder, four turbochargers, and a dual-clutch DSG computer-controlled manual transmission, the Veyron can reach a top speed of 253 mph. Counting a sum of 10 radiators, for the engine cooling system, for transmission oil, a heat exchanger for the air to liquid intercoolers, for engine oil etc., the car has a power to weight ratio of 529 bhp/tonne.If we talk about performance we are dazzled by this supercars power to reach 200 and 300 km/h (124 and 186 mph) in 7.3 and respectively 16.7 seconds, wining for herself the name of the quickest-accelerating production car in history. If we count the fact that the top speed of Bugatti Veyron is 253.2 miles per hour (407.5 km/h), a speed limited electronically to prevent tire damage (it can run even faster) we can understand why this spectacular car must consume 40.4 L/100 km (4.82 mpg) when it`s running at top speed and in city driving 24.1 L/100 km.Driven by a superstar like Tom Cruise, this supercar couldn`t name itself cheap, raising the Bugatti Veyron to a price tag of $1,700,000, a price that measures up to it`s quality. Many new designs has been released since 2006, the color might have changed, but the performance and power remain the same.
Specifications and performance
The Veyron features an 8.0 litre, quad-turbocharged, W16 cylinder engine, equivalent to two narrow-angle V8 engines . Each cylinder has four valves for a total of sixty four, but the narrow staggered V8 configuration allows two overhead camshafts to drive two banks of cylinders so only four camshafts are needed. The engine is fed by four turbochargers and displaces 7,993 cubic centimetres (487.8 cu in), with a square 86 by 86 mm (3.4 by 3.4 in) bore and stroke.The transmission is a dual-clutch direct-shift gearbox computer-controlled automatic with seven gear ratios, with magnesium paddles behind the steering wheel and a shift time of less than 150 milliseconds, built by Ricardo of England rather than Borg-Warner, who designed the six speed DSG used in the mainstream Volkswagen Group marques. The Veyron can be driven in either semi- or fully automatic mode. A replacement transmission for the Veyron costs just over US$120,000. It also has permanent four wheel drive using the Haldex Traction system. It uses special Michelin PAX run-flat tyres, designed specifically to accommodate the Veyron's top speed, which cost US$25,000 per set. The tyres can be removed from the rims only in France, a service which costs US$70,000. Curb weight is 1,888 kilograms (4,162 lb). This gives the car a power-to-weight ratio, according to Volkswagen Group's figures, of 446.3 metric horsepower (328 kW; 440 bhp) per ton.The car's wheelbase is 2,710 mm (106.7 in). Overall length is 4,462 mm (175.7 in), width 1,998 mm (78.7 in) and height 1,204 mm (47.4 in). The Bugatti Veyron has a total of ten radiators:
3 heat exchangers for the air-to-liquid intercoolers.
3 engine radiators.
1 for the air conditioning system.
1 transmission oil radiator.
1 differential oil radiator.
1 engine oil radiator.
It has a drag coefficient of 0.41 (normal condition) and 0.36 (after lowering to the ground), and a frontal area of 2.07 square metres (22.3 sq ft). This gives it a drag area – the combination of drag coefficient and frontal area, represented as CdA – of 0.74 m2 (8.0 sq ft).
German inspection officials recorded an average top speed of the original version of 408.47 km/h (253.81 mph) during test sessions on the Ehra-Lessien test track on 19 April 2005.This top speed was verified by James May on Top Gear in November 2006, again at Volkswagen Group's private Ehra-Lessien test track. May noted that at top speed the engine consumes 45,000 litres (9,900 imp gal) of air per minute (as much as a human breathes in four days). The Veyron has the highest top speed of any street legal production car. Back in the Top Gear studio, co-presenter Jeremy Clarkson commented that most super-cars felt like they were shaking apart at their top speed, and asked May if that was the case with the Veyron at 407 km/h (253 mph). May responded that no, the Veyron was very controlled, and only wobbled a tiny-bit when the air-brake deployed. May further commented “Absolutely yea, it’s totally undramatic. But I would give you a bit of a warning, It’s a bit disorientating doing that sort of speed, because after I came off the banking, I was slowing down to stop, and you know how you get a bit impatient and think ‘I’ll just open the door’, fortunately I looked back at the speedo, and I was still doing seventy.”On 4 July 2010, Bugatti's official test driver Pierre Henri Raphanel piloted the Super Sport edition and was clocked at an average of 431.072 km/h (267.856 mph) on the same track, taking back the title from the SSC Ultimate Aero TT as the fastest production vehicle of all time. The 431.072 km/h mark was reached by averaging the Super Sport's two test runs, the first reaching 427.93 km/h (265.90 mph) and the second 434.20 km/h (269.80 mph). The record run was certified by the German government and the Guinness Book of World Records.The car's everyday top speed is listed at 350 km/h (220 mph). When the car reaches 220 km/h (140 mph), hydraulics lower the car until it has a ground clearance of about 9 cm (3.5 in). At the same time, the wing and spoiler deploy. In this handling mode the wing provides 3,425 newtons (770 lbf) of downforce, holding the car to the road.[11]For top speed mode the driver must, while at rest, toggle a special top speed key to the left of the driver's seat. A checklist then establishes whether the car and its driver are ready to attempt to reach 407 km/h (253 mph). If so, the rear spoiler retracts, the front air diffusers shut, and normal 12.5 cm (4.9 in) ground clearance drops to 6.5 cm (2.6 in).
Braking
The Veyron's brakes use cross drilled, radially vented carbon fibre reinforced silicon carbide (C/SiC) composite discs, manufactured by SGL Carbon, which have a much greater resistance to brake fade when compared with conventional cast iron discs. The lightweight aluminium alloy monobloc brake calipers are made by AP Racing; the fronts have eight titanium pistons and the rear calipers have six pistons. Bugatti claims maximum deceleration of 1.3 g's on road tyres. As an added safety feature, in the event of brake failure, an anti-lock braking system (ABS) has also been installed on the handbrake.Prototypes have been subjected to repeated 1.0 g braking from 312 km/h (194 mph) to 80 km/h (50 mph) without fade. With the car's acceleration from 80 km/h (50 mph) to 312 km/h (194 mph), that test can be performed every 22 seconds. At speeds above 200 km/h (120 mph), the rear wing also acts as an airbrake, snapping to a 55° angle in 0.4 seconds once brakes are applied, providing an additional 0.68 g (6.66 m/s2) of deceleration (equivalent to the stopping power of an ordinary hatchback). Bugatti claims the Veyron will brake from 400 km/h (250 mph) to a standstill in less than 10 seconds, though distance covered in this time will be half of a kilometer (third of a mile)
Engine output
According to Volkswagen Group and certified by TÜV Süddeutschland, the final production Veyron engine produces 1,001 metric horsepower (736 kW; 987 bhp) of motive power, and generates 1,250 newton metres (922 ft·lbf) of torque. The nominal figure has been stated by Bugatti officials to be conservative, with the real total being 1,020 metric horsepower (750 kW; 1,006 bhp) or more.
World's Most Expensive Cars:
Bugatti Veyron Super Sports $2,400,000. This is by far the most expensive street legal car available on the market today (the base Veyron costs $1,700,000). It is the fastest accelerating car reaching 0-60 in 2.5 seconds. It is also the fastest street legal car when tested again on July 10, 2010 with the 2010 Super Sport Version reaching a top speed of 267 mph. When competing against the Bugatti Veyron, you better be prepared!
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