The wheels are 17x8 and 18x10.5 fully polished 3 piece CCW. They are very light, stong and look just right to me. I've used CCW on my Z06 also and love them. The tires are 215/40/17 and 275/35/18 Kuhmo MX. I could have gone 285 or 295 but I kept hearing about the understeer and TCS issues. I have no rubbing at all and the car is dropped 1.5" on H&R springs.