Clarkson & chums (tee hee gypsies) ? Amateurs.
The only thing wrong with this car is the lack of a roof, but some wavy tin and plasming would fix that.
(It's from a film stuffed with good bits, which are unfortunately separated by some less-good bits. Although I should likely watch it again, just to be sure. There is also Dennis Hopper not exactly stretching himself.)
(It's also a film that's oddly short internet presence - I mean, you'd think the spanner-fondling webforums would be jammed with similar kit, but No Can Has it seems.)
(Although. See previous post.)