User blog:Aaryesh G./Fastest topspeed in a stock Veyron 16.4 at Le Mans's Mulsanne straight

'The 2009 Veyron in the real world clocked 407km/h. In the Gran Turismo world, set the simulation to professional and if you know how to draft the cars in front at the right time, you get 421km/h in factory spec. See the video. Here is my car setup:'

Car: Bugatti Veyron 16.4 '09

Track: Circuit de la Sarthe (No chicane)

Transmission: Manual (MT)

Tires (Both front and rear): Sports S3

No TCS enabled

No ASM enabled

No Active Steering enabled

Driving Physics: Professional

No quick tune performed on this car

I just used drafting as there were two Veyron's in front.