Fat Race was a parody of Rat Race done with video game characters. Pretty much the object of this was to make the characters steal as much cars as possible.
One such car was Then gubernatorial candidate Tom Guillesano's campaign vehicle which was accidentally turned into an anti-American Osama-mobile due to crashing into random things.
Another stolen car was the original Cugnot's steam tractor which is impossible because it blew up. They simply replaced it with their old broken car in the museum and no one seemed to notice.