wooh! i think my favourites are the mustang, dodge challanger and corvette ... not generally a big fan of american cars but some of those are rather tasty
as to the connection between snakes and horses (Ford Mustang Cobra) i can only suggest the following analogy - Ford Sierra Cosworth - model is Sierra, Cosworth is an engineering company who (i presume) helped with the engine or similar ... like Mini and Mini Cooper? It did just say Cobra on the air-intake didn't it?