Wow, it looks amazing!
If you need any help with the physics, just say!
If you need any help with the physics, just say!
Aside from making bumpmaps directly in GIMP, I think most 3d model programs can do a difference map (high LOD mesh to low LOD mesh) texture. So then you'd just model in the details you want using lots of polies, then render the texture for the ingame model. How to do it depends on the program you're modeling with I suppose.
What really concerns me is the different look of the same car at different tracks. That bump layer just looks horrible in tracks like "Garage" or "Modern Garage". However there the windshield doesn't look like quicksilver as here...
Man, forget about driver model and moving hands. They aren´t well developed enough to use now
Bumpmaps don't work the same way if the texture's mirrored, the only way to fix it and still use a bumpmap is to map the two halves of the car separately. If you look at the Lamborghini's texture for example, it has the entire top of the car on the texture sheet, and both sides separately, and so on.