In Reply to: I meant F1 cars not Indy... posted by YLO///M3 on September 14, 2000 at 22:46:06:
You are right about those factors...I did mention the drag factor. However the 18"s would have 235/40 all around rather than OEM 225/45 and 245/40 which might compensate for the front increase size.
And actually, Indycars have 15 inch wheels- I have one in my living room as a coffee table. Besides, I used to chill and inspect my dad's car in his pit when he was on the CART circuit =)