My son nailed our XKR with his bike and scratched it pretty badly. I called the guys at Dent Dogs and they recommended a touch-up painter who works at the Greenway Mercedez dealer.

Since it's silver and I know that's a hard color to match I wasn't optimistic. The guy did the first coat and it looked pretty bad. I brought it back the next day and he finished it - and it's amazing. I can't even tell it was damaged.

I had the Dent Dogs folks work on a door ding at the same time, and they did great work, too. Both services were in the $70-80 range apiece. Highly recommended.

If you need some touch-up, just call/go to the dealer and they work out of the back (NE corner). Supposedly they have a wheel guy there, too, who does great work.