Before using this program you must install RTAI (RealTime Application Interface) a realtime nanokernel which runs Linux at a low priority and provides realtime services to programs that request them. 

You must also build a simple hardware device to connect the car to your computer's parallel port.  Mine consists of 2 transistors and 4 resistors to isolate the 12v signal in the car from the ~5v parallel port.

If you intend to use the nicer user interface a 3d card will help, although if you arent changing views often it will work on a fairly modest system.  I run this program on a P5MMX 150 laptop with 48MB RAM and software rendering.