my car was keyed and a buddy of mine owns a detail shop i took it to him and he sanded and buffed out the key marks for $50, even got out a big scratch on my moms izuzu trooper, my advice take it to a professional and just pay to have it fixed, IMO not worth using scratch X, a little to much pressure with that stuff can leave even nastier marks.........just my $.02

EDITED: for grammer..