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What are the compressors going to do with all the heat generated? Compressing air at 20 deg C to 300 atmospheres results in a temperature of about 1200 deg C. (according to a formula here). If global warming doesn't get in the way, maybe Canada will produce compressed air in the wintertime, using the waste heat to keep houses warm, and then store it and ship it to the U.S throughout the year.

And what is the car going to do with all the cold "generated"? With this engine sucking up so much heat, the air conditioner will practically free to run. Could be a great car for Arizona -- or at least a replacement for some of the golf carts I see around here.

What are the compressors going to do with all the heat generated? Compressing air at 20 deg C to 300 atmospheres results in a temperature of about 1200 deg C.

Like you and I said, home heating. Interestingly, if your formula is correct, which I believe it is, compressing the air generates about the same heat as a gasoline engine does when it runs.

The air coming out of the tanks is about negative 10 degrees, great for air conditioning. And you are right, the hotter the climate the better this could work. I also envision it in Golf cart type vehicles, good for 50 miles or so.