Speed Dreams a.k.a. SD is a free and open source 3D racing car simulator game developed by The Speed Dreams Team. The game is largely based on The Open Racing Car Simulator (TORCS) and is quite similar but has improved graphics, physics, menus, better A.I. opponents, new tracks and cars to choose from.
Mac OS X
Intel powered Mac
OpenGL 2.0 compliant graphics card
1 GB hard disk space