That's brilliant mate, thank you very much!
There are several software suites that are capable of this (3DSMax, Maya and other open source programs) but you'll need additional files in order to see the models in 3D. Luckily there are many rendering scenes available for download, I myself am working with 3DSMax and once you've got it setup correctly it is waaay easier than booting up the game constantly. The only time I go ingame is to race with my new skins. I added an example of a rendered STCC2 car.
If anyone wants to learn more feel free to send me a pm.
Cheers.
I go into an open practice on Sachenring or Alpine Hills (because the cars sit in the open, ie no garages to obscure the sides and rear) Then Alt-Tab out and work in Photoshop. Save, Alt-Tab back into Race and I think the shortcut is Ctrl-F5 to reload the skins.
I have been having some trouble with this method lately in that PS sometimes lags, but it works well enough for me though I never try anything too complex.
You did good! I will polish it with some tire marks