It looks an awful lot like the3 Mercedes Benz C111.

http://en.wikipedia.org/wiki/Mercedes_benz_c111

Started as a 3 rotor Wankel, Then 4 Rotor Wankel, Then a couple of Diesels.

Paul Hegge

BTY I stopped at the Toy Shack on Wednesday and Found a Dicast model that I have been looking for since "They Built the thing.

Rumor has it that Princess Diana had one of them.