Okay...your tires are originally 185/65/15. That means your speedo is already 2.7% too fast, which isn't bad. 215/60 would be 11% too slow, which is pretty horrendous. You are NOT going to eliminate your fender gap just by buying bigger wheels. Your two options are to either put 15" wheels on it, which would give far less of an illusion of wheel gap, or to lower your car.