This interesting video shows how cars can run on...AIR. Tanks of compressed air are used to run this vehicle. However, it takes some energy to produce compressed air...but MDI has produced a generator to produce compressed air that works on...compressed air ! So if that generator was on the car then the car would be producing its own compressed air.

To see this video, follow this link: Air Car Video

Air Car Factories are at the front of this develoment and you can view their website at the following link: Air Car Factories

Another video showing both the French and Australian versions of air powered engines can be found at this link: Air Powered Motors