if you want to auto-x those wheels, here's a sticky 15" tire. street tire auto-x classes have tire wear restrictions. and those are too soft. usually 200 utqg rating, but i don't think there's any 15" tires available that soft anymore. there are R-comp classes that you can get 15's for but they don't last long. canyon driving you'll probably end up looking for 17" or 18" wheels someday anyway. what else have you done to the car?