Many thanks, Steve. Great stuff. I've been there too, and so's my lad.
In fact I bet most of the Le Mans drivers had their first 'drive' in a cardboard box, (and so much cheaper than a Playstation or X-Box).
I know it's changing the thread somewhat and maybe should this be in the jokes section, but give your chuckle muscles some exercise and look at another of the same website's offerings. OK it's a bit schoolboy, but I bet you laugh out loud!
Go to
http://i4a.pocketmovies.net/movies/fun/matrixfart.mpg