Just picked up an 09 C63 black/black. Going to be putting winter tires on my stock wheels and will be picking up some forgestars for summers with Michelin PSS. Trying to figure out what size tires work on these cars. I read that on stock wheels 275 PSS rub when under load which I do not want. I want to add rubber back there, but I want do not want to rub under any circumstance. I'm going to probably be getting the new CF5v Forgestars. Thinking F19x8.5 and R19x9.5. How wide can I go PSS with that set up? Thanks guys. I searched but couldn't find a solid answer.

Edit: Thinking 245/35/19 upfront BTW.

If you have stock suspension, you have more options. I think people say the width of 275 is fine, usually, but in the case of PSS's, they run square. Some other tires may be more rounded and don't rub even thought they're the same size. The thickness of the tires also varies manufacturer to manufacturer.

Search the forums, there are tons of threads on the topic.

i'm on 275r atm no rub at all.

for wheels i have 8.5f and 10r

btw grats on car

I was in the tire/wheel dilemma for a while. Search, search, search!!!!!!