The day I picked up my Ash Gold V70, I noticed that the paint was blotchy just on the runner along where the roof rails would go. When I took the car back to have some other defects taken care of, the dealer polished the runners but, after 2 weeks, the blotches are back. Basically, they look like water spots with brown edges and they don't come off. One XC on the lot has the same problem. Has anybody noticed this on their cars?