Is there a quick and easy way to determine if your 15" rallye wheels are 7" or 8" wide? Tires are already mounted to the wheels and on the car. Is the only way to measure what you have is to remove the beauty ring and measure the outside and then the inside width?
I am looking to get new radial tires and I would like to know for the rear if I need to get 245/60s or 255/60s. If the wheels are 7" then I think the 255s would be too fat looking on the sides.