Hi Damien,
Feel free to download it yourself from…
http://www.candointeractive.com/gamedesign/car
You can use it completely for free, for your personal website usage. The file above contains instructions, a sample level etc.
If you have downloaded the track, it might be an interesting project to also get a model of a racing car, and replace the van with it ( look for carSkin in the documentation ).
Regards…
Mal