Tile Racer is a freeware 3D stunt racing game which features realistic car physics and an in game track editor to create new maps to race on. At the moment the players are able to race for the best lap time but a hotseat splitscreen mode and an AI enemy to race against are in the works. The game was started by two students at the University of Applied Sciences in Hagenberg / Upper Austria and is now being further developed and maintained by them after graduation.
source: tileracer.model-view.com/tl/index.php/information.html