Black cars will do that, whether its a Ford or a GM, but I've noticed GM black does seem to swirl and scratch much easier then others.
My best suggestion would be to wash, claybar, wash, wax, and wax again. It may not remove them, but it'll probably do a fair job covernig it up. Also, if you mosey on over to the GAOC, do a search and look for the topic containing the words "Diamond" coating or something.
A guy on there had his black Grand Am GT diamond coated, it's like a teflan. They did a days worth of buffing and scratch/swirl removing (Which he said was very successful for the most part), and then coat it with this stuff. Look at those pics!