My New Game - HoloRacer

I've finally got round to writing a new game. I thought I'd go for something simple that I could hopefully finish before I got bored with it. It's a simple 3D racing game called HoloRacer. It's designed to be as simple and as fast as possible, and it does get pretty fast (assuming you have a good graphics card). It's still in it's mid stages, and is fully playable and good for 5 mins. I'm just trying to think of features'n'things to add to it now. Let me know what you think.