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When I ask Bugatti development boss Wolfgang Schreiber to explain how the same engine can be rated at 1001 SAE net horsepower at 6000 rpm for the U.S. but only 987 horsepower (1001 PS) for Europe, he laughs, saying, "The production engines are all putting out between 1020 and 1040 PS—enough to cover both promises."

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In my first lap, I took the car up to about 185 mph, at which point the tire noise was fairly loud but the Veyron was otherwise calm and relaxed. One reason it felt so secure is that when you hit 137 mph, the Bugatti hunkers down, lowering its normal ride height of 4.9 inches to 3.1 in front and 3.7 in the rear. At the same time a small spoiler deploys from the rear bodywork and a wing extends about a foot, perched at a six-degree angle. Two underbody flaps ahead of the front tires also open up. This configuration produces substantial downforce—about 330 pounds in front and 440 in the rear at 230 mph.

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You will likely only experience this speed in short bursts, which is why the Veyron's powerful brakes will come in handy. The car is equipped with huge carbon-ceramic brakes: 15.7 inches in front with eight-piston, four-pad calipers, and 15.0 inches in back with six-piston, two-pad calipers. When you step on the brakes at high speed, the rear wing tilts up to a 55-degree angle. At 230 mph, this increases rear downforce to 1100 pounds and adds as much as 2500 pounds of drag. A panic stop at that speed produces nearly 2.00 g of initial deceleration—at least 50 percent more retardation than a Porsche 911 can generate at any speed.

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Originally posted by ChromeDragon
Damn that's some insane braking!:eek:

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Originally posted by oldraven
:bowdown:

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But 230 mph is about as fast as the Veyron will go until you put the car into top-speed mode. This involves coming to a stop and, while the car is idling, turning a key in a lock on the floor to the left of the driver's seat. When you do that, the car sinks down even lower on its suspension, until ground clearance has been reduced to a mere 2.6 inches in front and 2.8 in the rear. This setup also causes the front underbody flaps to close and the rear spoiler and wing to retract, although the wing remains tilted out of the body at a slight two-degree angle. These changes reduce the car's drag coefficient from 0.41 to 0.36, and they reduce the peak downforce from 770 to 120 pounds.

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Projected fuel economy (C/D est):
EPA city driving: 7 mpg
EPA highway driving: 10 mpg
Steady 253 mph: 3 mpg

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