yea youre seeing a trend here for a reason. 18's seem unthinable to me. My 17's are barely passable for daily driving. I just test drove a 95 GS-R with stock wheels and it felt great.

 

oh yeah, try the same wheel and tire setup on the same car, except with a 10/6 kg/mm suspension setup (aka, not fun unless i'm driving the shizzle out of it like a road car)

i'm going for a 50 or 55 series with 15's now, b/c i'm so fed up with my 17's. just get 16's, the size is barely noticable and the ride quality of 16's are superior to 17's.