No thanks, big downloads are tough for me(2.5kb/s). Anyways, I noticed that your using level geo for the levels. I'd reccomend using models, especially for the road ways... that way you can get nice smooth curves. Simply use a multitexturing FFP or shader on the models to have decent textures. Also, slow it down a bit and don't have the vehicle accelerate so quickly. That should improve the gameplay quite a bit.