[ChrisGood]

i would worry more about tread pattern than rim size, mr civic should no be running 18's on a car that stock came with 15's. Some 3k's came with 18's on them so they are of course going to work fine. I would concern myself with the tread pattern, IMO, mount some nice tires on the 18's and some winter tires on your stockers, may cost some but its worth it in the winter to have a set of tires with some traction. I knew a guy who had what looked like truck snow tires that he slapped on his vette every winter. Crazy and cool.