Thanks all for your responses. I ordered 265/35/18's . Thanks Justin. I saw the pics on your car and it looked good. Justin, didn't you jsut sell your car? I have 215/40/17 up front on 17x8 Volk GT-P's. The rears are 18x10. I will use them mostly for street with some possible track time. Icouldn't find 275/35/18 anywhere and I agree, that the 285 may be too big. From my many hours searching the archives, I came up with this: 265/35- optimum handling, lighter weight, faster acceleration, slightly stretched loo, less rim protection. 285/30- Heavier, more mass, slower, looks cool. I chose performance over looking cool. But I guess getting new rims/tires is just to look cool anyways, according to most people on the forums. =)