Yeah I have a black G35, so I know your pain...
I have used Meguiar's Scratch X, but I would only recommend it for light scratches that can be applied by hand. But after you apply, it wil strip away any wax you have on the surface, so apply something afterwards.

How deep is the scratch? There are various products that can help if the scratch is not too deep, and this is what I am using currently:

http://www.danase.com/chgucoandscr.html

I've only had the chance to use CGC-2, and CGC-1 because CGC-3 is pretty rough and thankfully, I haven't cracked the bottle open yet.

I would only apply these with a porter cable and depending on which one you choose, a pad to match it ( such as an orange cutting, or white polishing, etc )

check with www.autopia.org for other solutions

 

Thanks ksig113!

Regarding your question, "How deep is the scratch?" Which one? Yeah, I have more then one...I gave up after 6. There's one on the driver side door which pretty much got down to the primer...yeah, I can see white! There's a couple down to the sheet metal. There's also a nice chip right on the side of the door to the gas cap.

I live in Canada specifically Calgary, Alberta and they don't sell Danase here! I'm thinking about taking the baby to the detailer but the cheapest estimate I got is $200 CDN. I pretty much don't know what to do and I only had her since the middle of October of 2005.

Hmmm!