cloud9 said:The 285s require a 9.5-11.0" rim per Nittos specs so that 18 x 9 rim is too narrow to work effectively. You could probably mount the tire but I don't think it's that effective (or necessarily safe) to run tires on rims smaller than the mfr suggests. The tire will just bulge and your actual contact patch gets reduced so you lose the benefit. The tire sidewall also won't be as stable. That said you could probably do it, but I personally wouldn't. To find out just mount the 255 tire on your car and check the clearance from the sidewall to the strut at its closest point. The width difference between the two tires is (555RII=11.22") - (555=10.16") = 1.06" so you will be .53" closer to the strut with that 285/35/18 tire. I know some people will go as low as 1/4" or less with a stiff sidewall tire, but I'm more comfortable at 3/8"-1/2" clearance.
Yea, I did not even think about the front rims, only 9 inch. Sorry without searching what rims and width you running the II's on? Outside of wider rims I guess you had no issues with the car itself, no special mods?
Edit, thanks for the post above. I was thinking about rubbing inside more then the fenders.