it has been driven to limit many times around the world along the longest pieces of tarmac in the world and its max speed is 251mph (miles per hour) or 404 km/h (kilometers per hour). these results are accurate as they were measured using a infer red laser
A Bugatti Veyron's top speed is 253mph (407kph)
The Bugati Veyron goes 243mp/h.
405
A Bugatti Supersport can go 268mph.
The Bugatti Veyron
It goes 268 mph.
Car and Driver magazine clocked the Bugatti Veyron at 253 MPH.
The fastest speed of the Bugatti Veyron Supersport World Record Edition is 599 km/h.
2.5 seconds
253 mph
Bugatti Veyron - 253mph (~408kph) Bugatti Veyron SuperSport - 267mph (~431kph)
According to Top Gear (when James May drove it), A Bugatti Veyron Super Sport goes 267mph... (I love Bugatti Veyrons!)