I've used a bra on my Inferno Red PT Cruiser for over two years and the paint under is perfect. I only take it off to wash the car. I personally like the look and I'm twice 25. I can't tell you how many complements I get.

When my white Crossfire arrives, I'll drive it out of the dealership with the bra. I used bras on a half dozen sports cars over the years and never had a problem.