I suspect you'd enjoy an episode from a series called "James May's Toy Stories". Season 1, episode 4 profiles Scalectrix slot cars. They travel to England to the site of the fabled Brooklands race course and decide to build a Scalectrix layout over the original track. Only problem is there are now houses, a couple of corporate headquarters and a pond in the way. The result is a world record scale race circuit that finds clever ways around several obstacles. The race was fun to watch, especially since each car had a camera on board.