Look at an older pic of my ride below:

http://i297.photobucket.com/albums/m...rch2010219.jpg

Those are 18s. Looks like "room" on the front and back of the front tire, right? Sure. So long as you only want to go straight. There is less than 3/4" clearance when turning. It is already possible to rub if i hit a bump while turning sharp.

Beyond that, I personally think there is more visual impact by the hoop size than by any front/rear clearance issue. Just think ofnhow large a wheel it would take to "fill" a mid 60s cuda!