Originally Posted by Theivz
but FWD/AWD don't rock as much (due to the physics of the movement) hence the reason for bmw as you say increasing the rears otherwise they would recommend all 4 the same like other companies
The weight transfer cause by braking is far greater than under accleration (i.e. road cars stop quicker than they go), so by that measure we should all pump up our front tyres more than the rear?
The rear weight transfer under acceleration (in any road car) is minimal, adding passengers or loading the boot will have much more effect, and that's the same for any car.
But anyway, the rating plate is good reference point to start with.