Wow

nice! Only a couple nitpicks:
1. KITT is TOO shiny.

Especially after all that 'work' he has to do in the game.
2. The back rocket launchers or whatever they are, looks like they are bigger than his trunk.
3. The tire treads on the ground/floor don't line up when he's in ski mode.
4. The underside isn't rendered properly. Needs more 3D detail I would think.
5. Sometimes KITT seems a bit short and stout, when he's actually quite long and lean looking.
6. Scenes aren't anti-aliased much. Probably due to the 3D engine used and the fact that if it were anti-aliased, you'd need more computing power to render/play it smoothly.
Even at that, I can't wait for the game to come out. Looks like some interesting puzzles and scenes are included.