[rgriffin]

I have a black Boxster and black Mercedes. Both have had swirl marks in the past. I got rid of them beautifully using this method:

All Meguiars products
1. Clay bar entire car
2. Use sponge applicator with orbital polisher to apply scratch-X. Be sure to really rub it into finish.
3. Wipe off residue with clean towel.
4. Use a DIFFERENT sponge applicator and do same thing with wax. You don't have to work this in like the scratch-X.
5. Wipe off excess with towel.
6. Use orbital with a fine soft terry cover, and polish to a high shine.

So far this method has gotten out fine scratches as well as swirl marks. I've done this for years and paint looks great. Good luck!