3M imperial hand glaze, works well on black and swirl marks. I did mine by hand, after noticing swirls all over my new 2011(red) Mustang GT. Always take delivery of a new car under artificial lights. I took delivery of mine in the service bay. The next day, I pulled into a parking lot and nearly lost my mind. There were swirls up and down both sides. The jackwagon salesman 'wiped' it down, in an effort to hurry and get me my car quicker. The dealer offered to let there lot boy detail and buff it. I refused and tried the 3M hand glaze. It took 2 coats and a lot of patients, but fixed 95%(you must keep it waxed). The front fender had to buffed by the body shop. I was taught a big lesson after that one. If I noticed prior to taking it, I could of refused and got another car. Harley Davidson gloss spray is nice, for black touch ups.