I was refering to the lateral g forces brought about by cornering. Cenrtipetal Force if you like. Under braking an F1 car can do about 4G easily. It cans top from 230 mph to 0 in a little over 150metres. Bear in mind though, that this is all taking place on race tracks where most variables (pedestrians in the road, kids running about, traffic from an opposing direction) are removed, not on the street of Bilericay or wherever.