Hello, I have a 240 sedan and need advice on caring for the paint. It's silver and not oxidized, but looks a little dull. The car recently had a run-in with a garage door, creating scratches on the roof. The scratches run several inches long, from the front to back past the sunroof. They seem pretty shallow and even but may get down to the metal.<P>Any advice on how to treat this? Will waxing be enough or should I shop for a new paint job. Thanks.