have you tried calling Tire Rack? They're quite helpful.
Yes, you need 18" wheels if you have those brakes. 225/45/18 all around is preferred for winter use. No need for staggered. Are you swapping tires on or buying a mounted set with wheels?
| '13 328i M Sport - Estoril Blue | '12 300C SRT8 | '12 Wrangler Rubi Unlimited - COD MW3 Edition|