I'm getting rid of my 335 and getting into an M4, ordered with the black 19" wheels. The 335 has the sport package and optional (cast) 230 wheels. I think I cracked and repaired or replaced 5 of them since 2008 in 123k miles. I even tossed the run flats after the first set at 35k miles, but I still had problems. I live in the Bay Area where the roads are generally good, and I'm super careful. Will I have the same problems with the (forged) M4 19" wheels? Has anyone broken or bent many? Thanks.