There was a build thread for this car on Scoobynet a little while back...
http://bbs.scoobynet.com/scoobynet-g...ra-cossie.html
...I'm actually a little bit disappointed with the final product, as I thought they were going to build it in the style of a road-legal rallycross car (i.e. with the radiators in the back), but they seem to have opted for a more conventional final design.
Still an awesome build though: but £55K seems a bit much to me...