The motor is not the bottle neck in the air power concept. The pressure limits of the storage tanks VS their size and weight is what the problem.
DO the math on what a air tank that could power the average sized vehicle the same distance as the fuel in its gas tank produces.
How do you fit a 10,000 PSI 20 ton semi tanker in the trunk of an average car?
And what power source pumps it up to start with? All of that energy has to come from some place to start with and those starting places and equipment to capture that energy are never free even if the energy source is.
DO the math on what a air tank that could power the average sized vehicle the same distance as the fuel in its gas tank produces.
How do you fit a 10,000 PSI 20 ton semi tanker in the trunk of an average car?
And what power source pumps it up to start with? All of that energy has to come from some place to start with and those starting places and equipment to capture that energy are never free even if the energy source is.