truth be told, 17 is no larger than i would want to go. on the wheels, and thusly have a slightly meatier tire. i was offered a set of 18 wheels, forged and about 20-21 lbs each (so fairly light, for the size (18x8, 18x10)), so i had brought it up in this forum to wonder about actual fitment. the backspacing is slightly more than 5" per wheel, and since my car is already at the shop, adding flares wouldn't be tremendously hard to do. so the question remains: if the brake work has been done, a 5 lug setup is utilized, and the shocks are already coilover, does anyone think it will not fit? keeping in mind the original 24.7" OD of the 195-70-14 tire. the questions is not why? but rather will it fit? whether or not it happens is another story altogether. but on an aside, plenty of people run 17" wheels. 18" is not a tremendous leap by any means. if one is running an rb26dett, common sense and all thought of financial sensibility has been tossed out the window anyway. so please help me find out the factual information of the feasibility of running the above 18" sized wheels.