The BBC Top Gear show used to have some interesting and often silly adventures with the three hosts. One time they were doing a spoof on car-based motor homes, and a few looked a lot like this creation.
From the picture it looks like a candy green over a gold base. Notice the gold on the firewall that appears to have been masked off and the green shade on the body looks a little thin and gold highlight showing through.
Thank you for the information on Round 2's future reissues. I like the way they have added to the appearance and options on these. I better start saving up since it looks like they'll be getting some of my model building money soon.