Originally Posted by jamesq
Any comments on a 255/40 rear 225/45 front set up for snow on original 18 inch rims for a 2009 M3?
Rear is very common to use 255/40R18 on OE 18's. The 225/45R18 recommended to fit a maximum of 8.5 wide wheel. So they'll look a little bit stretched up front, though nothing unsafe. You will have = height front and rear with that setup.