don't forget that this is a purely basic ratio calculation and it doesn't take ito account tyre swelling the faster you go which can account for an extra bit of speed

the maclaren F1 was geared to hit the limiter at 225 mph but their first run out saw it doing 231, so there was some serious head screatching going on there, because you aren't supposed to be making that sort of mistake when you build a car that expensive