Have a '90 K5 w/ stock aluminum wheels. In my opinion these are great looking wheels but they do have 15 years of wear. I have heard there are places that will restore aluminum wheels and they will look brand new. I would do it myself but there is a plastic-like film over the wheel. I guess this was for protection but I think this is actually what looks worn. The actual wheel itself may be fine. Don't know what to do with this film or if I remove it how the wheel would be protected in future use. Any ideas??