Ok, I just installed some 9.5x18 inch c6 z06's all the way around. They are 40+ offset. They fit perfect in my opinion. This is the size of the stock c6 z06's front wheel. I was worried because I thought it would stick out too much in the front, but with the tire sizes I used it was perfect... I used the Nitto invo 255/40/18 front and 295/35/18. They fit great. No rubbing on turns, clears the cladding, and rides great. I will take pics tomarrow. Not my first pick on wheels but I had to use this wheel because of the big c6 zo6 brakes I will be running.