The car: 2008 CTS V6 AWD. The question: Tires are 235 50 R 18. Want to get spare rim. Do I need an 8" width or 8 1/2"? Does it matter?
Car did not come with a spare. Hate donuts. Trying to put together a
mounted spare. The latest wrinkle is do I need an 8" or 8 1/2" width rim?
Does it matter?