i dont think thousands out there would be affected. i see plenty of cars with tires that should be on a 7" rim but are on 6". with todays wheels there are so many with the right offset i dont see a problem with fitment. i really dont think the 1" difference will make you go backwards in the result sheets. i see so many cars running like 225/45/15 tires on 6" rims when they should be 7". just my .02. dont mean to offend anyone