I have a 15 year old car that I am working on, that had faded but painted plastic mirrors and door handles. The car was kept outside for all of its 15 years. Anyway the car looked fantastic but after the first rain they became spotted and faded and I have tired a few options but they seem to be permanently spotted and stained. I knew the painted plastic area had very little clear coat remaining by sight if any so I fault myself here not the product whatsoever. BTW I used Optimum Hyper Polish which worked fantastically on the remainder of the vehicle. Any ideas or has this happened to anyone before, and if so is it fixable?