Timppaq
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- Helsinki
- GTP_Timppaq
I personally use Gimp which is a essentially a free version of Adobe's Photoshop and Illustrator combined into one program, but isn't as good as the two separate programs individually. If you don't have Photoshop and Illustrator then don't go out and spend the money if all you'll be doing is painting cars, but if you do then give both a try.
Photoshop CS2 for "free". It's old but still gold.
http://www.techspot.com/downloads/3689-adobe-photoshop-cs2.html