bowmanm98

What is stock again? I plan on running 285s.

gota911

For a narrow body C2, 65 mm is the OEM wheel offset so 60 mm would be OK. A wheel with a 48 mm offset would push the wheel 17 mm (approx. 3/4") farther out (toward the street). The outer bead of the tire would probably extend even with or outside the fender well.

48 mm would probably work for a C4 widebody ( I don't know the OEM wheel offset for a C4).

rbjbbb

Gotta is probably right. Considering the wider tire to begin with, i think the 60 offset would look great.

My config...
Offsets and sizes on OEM classics 18"
R - 265/30-ZR18 on 10" rim offset 65
F - 225/35-ZR18 on 8" rim offset 52
(pirelli assymetrico's)
Here is an idea of rear view on mine- (uhmm.. the one on the right of course)

SET

For my C4S Tire Rack recommends, for my winter wheels, 21mm spacers for 18X10's with 265/35R18's blizk LM25's.

gota911

What is the offset for the 18X10 wheels? If it is 65mm, then yes, you could push the wheels out 21mm and be OK, because you have a wide body car. If your wheels had a 48mm offset, then you would not need spacers.