Just got a chance to look at this in Blender....3ds format...The front windshield is the steklo and material 123456712....still checking for ya
well, shoot, materail 123456712 seems to be a basic, but if you can edit by groups it is the steklo mesh
Edit: If no one beats me to it, I found some clues, Mat 1234 is the side windows glass. Will see what I come up with.
Edit...I am this far in 20 minutes Forgot to download the example colors...ha
Sorry, this is way over my head. I cant get to the wheel assemblies. They are very complex vertices and I have not found the independent material for them.