[Excaliber]

I understand they have to weld the manhole covers in place for a street race. The F1 cars generate so much suction (down force), 1500 lbs or so, they could lift the manhole covers off the street.

I also found it interesting that at speed just lifting the throttle alone will generate 1g of braking force from aero drag on the car. 5g if you step on the brakes.