The Beast
With Rolls Royce front
It is road worthy (presently in Spain), and he uses it for fun as it does about 1 km per litre of fuel, and the noise is "marginally legal"

Admittedly the paint job on the video example is a little better.
Just found this, someone has put one into a Rover SD1

Rover
YouTube, "John Dodd's Beast" and you will find a couple videos.
Matt