A long time ago in a galaxy far far away there was a game called Stunts. And a great game it was. Insane unrealistic stunt driving with a track editor.
Today the Stunts equivalent is TrackMania. Sure, TrackMania does not have licensed cars and does not have car collisions, but it does have insane unrealistic stunt driving and a track editor. Thanks to sites like the TrackMania Carpark and TrackMania Track Exchange, people can also share car models and crazy tracks.
Although I don't have TrackMania Sunrise anymore, I did find these videos made back in my track building days.