Two cylinder air compressed engine – This air car is powered by a two cylinder, compressed air engine. However, it does not operate off of just air power. It can also operate as an internal combustion engine. It is expected that cars such as this can travel around 124 miles before it has to be refueled with compressed air. As for how this air power car works, the compressed air is stored in a tank made of carbon or glass fiber at pressures of 4, 350 pounds per square inch.