Comressed air powered car conversion

[Bicycle Bob]

I just have to second that comment on the inescapability of the laws of physics. Combined with some back-of envelope calculations, they have shown me that several slick brochures were frauds. The air car was a prime example. After half an hour of checking figures, I advised an editor I knew to print a retraction. He scoffed, but kept an eye out for experimental evidence, and it showed up two years later.

[Dr. Jerryrigger]

I don't know about this one, seems like we have better ways to store energy. Never mind the true range of these, that safety factor is what will keep them off the roads (hopefully, I'm still a little scared of the Chevy volt as I know how a small Lithium ion battery explodes). I heard, some years back, the French came up with a flywheel storage system; where when you hit the brakes the wheel was spun up, and when accelerating you used some of the wheels power. Then they did crash tests, and the wheel would shoot off in some direction with enough force to rip through another car. They switched to a ceramic wheel that would shatter, but I assume nothing has come of this, as I haven't heard about it since.
Anyone who has worked with high pressure tanks seems to think this is a bad idea. And as I imagine a cylinder flying at me from some relatively far away accident, I agree.

[idtent]

here's a link to flywheel recovery page 98 Popular Mechanics - Google Books

But as far as compressed air goes I think one of the best design is Di Pietro rotary air engine.- info

http://www.youtube.com/watch?v=Dq8aZVLpf-c

Also EPIndustries has a unique design of a motor/pump that seems to have a pretty good output- CEM Co. Carbon fiber can be built to be extremely tough. I remember seeing a video on youtube of a carbon tank filled with hydrogen being shot at with 50cal guns. I would think that an air powered vehicle would be about as good of a choice as electric plus you would have a quicker refill.