<center>
 http://lh4.ggpht.com/FordRaptor.jpg
http://lh4.ggpht.com/FordRaptor.jpg
</center>
Ugh...uploader didn't like my image for whatever reason.  Here it is.
Just a blank version of the Raptor so other folks can go to town on it.  The existing texture looks *blech* in game, but it's meant as a base for designs so the highlights are there but would need to be toned down in PSP.  I suggest greyscaling the existing textures before trying to make it into shading/highlights.  Have a party!
http://mtm2.com/~trucks/trucks.cgi?s=Ford+Raptor