I'm looking into getting the Saleen SC-style wheels for my '91, I really want to get the black wheels, but I was just wondering how well do painted wheels hold up over time? Like after a year, two years, etc. Do they chip easily? What's the best way to wash them? Or does it just depend on the manufacturer? I live in Central California, so it's hot most of the year, and we have mild winters, will that make a difference? Thanks