Originally Posted by DrivenByE30
Because they are a whole other cars from their regular normal counter-parts...
They have wider track (wider is better Pontiac commercial)
their suspension and dynamics are different, making them significantly Not the same as the non-Ms. So technically now you cannot have an M3/4 just by swapping engines...
e82 135, e82 1m
e90 335, e90 m3
e92 335, e92 m3
e93 335, e93 m3
f10 550, f10 m5
f12 650, f12 m6
f13 650, f13 m6
those cars are completely different then their counterparts but have the same chassis code?