On my 06 GT I ordered 19'' Zenetti wheels with 245 tires in front and 275 in rear. But now the shop that I ordered from says they cant get the rear tire that I wanted in a 275, they can only get it in a 285. I think that the wider the rear tire is the better it will look, but I dont want it to rub at all and I dont want to sacrifice performance. Am I safe to run 285's in the rear with no rubbing at all?