I am looking for the name of an 80s claymation film that is the story of an old roadster that was owned by an old man. A small boy, the protagonist, comes on the seen to get the old man to enter his roadster in a race with a villain. The villain owns a state of the art rocket car with all the bells and whistles. The race starts in the flat lands and ends with the cars racing up to the top of a mountain peak. Do you have any ideas about the name of this film?
