Well, just for the benefit of those who don't realize that's a joke, IT'S A JOKE! That needs to be said, because there have been a few cranks promoting compressed air cars before. They don't tell you what an enormous amount of energy is required to compress a gas, or how much heat is generated, which then dissipates and is wasted before you can use that energy. So, ultimately, how little range and what low efficiency the whole scam has. If it was such a good idea, it would be the norm. It's not, so it isn't. ***EDIT*** Just remembered reading many years ago (when I was interested in steam power) of a railyard engine for moving cars around that was nothing but a steam locomotive, but with a very large steel thermos bottle instead of the usual boiler/exchanger/firebox/etc. It would take on a load of steam from a stationary boiler at the yard, and then run for hours doing its chores. (After a valve adjustment, the thing was nearly silent.) Even though it wasn't putting out many miles of range, the only reason it worked was because it was using steam instead of air - lots more energy contained in a working fluid that changes phase. If they had used air it would have spent more time getting pumped up than working.