[Steve Chryssos]

I've run both 17's and 18's on my Camaro and I say 18's all the way. The distance from the middle of the door to the bottom of the rocker is about 15". 17's kinda fit in between the middle character line and the bottom of the rocker, while 18's tend to bust out a little more. Makes the body look small and nimble. But it only works if the car is lowered properly.

And I agree about 17/18 combo's. To me 17/18's just look like the manufacturer shipped the wrong front wheels by accident. The car needs to be extra low in front to pull off the look.