Originally Posted by m3p40
Sounds like enough grip. It's interesting because I run 295s on my M3 with no problem. I feel a car like the C63 should be setup for some nice wide tires. Although I will admit 295 on an M3 is overkill. 275 is probably perfect.
I have RE-11 in stock sizes on my zcp wheels on my 1M, and there is a ton of grip, especially for cornering on the track.
My car makes over 400 ft/lbs to the wheels and the re-11's were up to the task almost the entire time on the track and on the street.
they are amazing tires, and probably can tame the c63 to a degree. superior to PSS in track style driving.
i look forward to what BMW and Mercedes both come up with on the next generation of the m3 / c63