Well I heard somewhere tha dry ice works for takign small dings out when yourub in it circles but done qoute me on that adn for scratch would rubbing compound be a good idea? I havent tried this just poped into my head
97 Mystquie GS - I4 ATX died at 168K
94 Pontiac Crap AM SE - 2.3L I4 5spd
2002 Mazda Protege5 - 2.0L ATX