Hey guys. I want to be ordering some American Muscle GT500 Replicas for my GP once I get a few more mods on..and I was wondering about your input on wheel size. They'll only be on the car in the dry (as in, no snow) seasons, but I wanted to know some of the effects of wheel size on our GPs. I know the rims are, the more they affect the transmission, but what's the difference for mileage and such for 18s or 19s, vs my stock (16s?) rims? Will they have a major affect on my transmission only being on for about 60-70% of the year? How can I expect my car's performance to be affected? And lastly, which looks better? (I realize it's an inch of a difference, but different strokes for different folks.)