This is how it looks now:
What i did is this: I opened and resaved the model in DeepExploration (a very powerfull 3D converter tool) and the colors were correct from there on (they were as wrong as your render shows before). I don't know why this has happened. It's either a flaw in jPCT's 3DS-loader (but one that doesn't occur on any other model i know of) or a flaw in the software you used to make this model (i doubt that, but you never know).
Anyway, i modified some parts of your code that suffered from a copy-and-paste disease... :wink:
You applied a rotation to every part of "vroom" right after loading. That's not a good idea, because it means that you rotate every part around its own rotation pivot...and that will screw up the model finally. I replaced this by rotating the mainObj only.
Second, you don't have to add mainObj to the world, because it's a dummy object.
Third, i removed the light sources and set ambient to max to show you, that the colors are really fine now.
Fourth...some other stuff i can't remember...
The sources can be found here:
http://www.jpct.net/stuff/vroomAnyway, please tell me which program you used to create the model, so i can track down this problem better...
