I know this might sound stupid, but my 225/45 are wider (just by looking from above) incomparison to my 235/40. Also after I put my 225 on, the front tyres touch something on full lock. Rather annoying, but I have the wrong tyre size after all.
Lev isn't your rims non staggered i.e not narrows and wides ? your car got the M Contour 1 rims if I'm not mistaken which all of them are 8J. The M3 and M Contour 2 rims are staggered, the front being 7.5J and the rear 8.5J.
