In Reply to: Tirerack says max 17" - end posted by Bernard A. on August 22, 2000 at 14:00:12:
Cons:cost--sure 18" wheels and tires cost more than 15"-17" but if that is what you want(and can afford) don't settle for less. Harsh ride--true, however, the upside is increased cornering ability, traction...increased weight--not always. I have an E36 M3 and the stock wheels are 23#'s and the BBS RC's that will replace them are 18#'s (according to tirerack)so right there I dropped 20#'s of rotating mass from the car. I belive that this translates into INCREASED acceleration and a suspension that will work a little easier. Reduced tire selection??? Check out tirerack.com and find someone who DOESN'T offer an 18" tire. Reduced performance--covered that one already. Rubbing or fender damage--no comment. Wheel damage--no more so than with any other size.
I think I will stick with 17s and just lower the car 1 inch.
Thank you very much Josh
I would like to run 18" wheels what are the pros and cons of doing this? I posted this before with no help. Any ideas.