Try FLITZ POLISH! I have an 04 6MT laser red and someone hated on my car, keyed my door in a parking lot. Autobody shop quoted me $800 but my boy has 99 Saleen 351 used FLITZ on his scratches gave me a tube of poish and it worked quite well! Use a terry cloth, I use an old sock. Stay away from 3m or McGuire over the counter from Kragen--that $hit doesn't work!
FLITZ is cheap...check it out
http://cgi.ebay.com/FLITZ-Metal-Poli...3A1%7C294%3A50