Unfortunately there are downsides, but compressed air vehicles are already a thing. https://en.wikipedia.org/wiki/Compressed-air_vehicle https://en.wikipedia.o

Unfortunately there are downsides, but compressed air vehicles are already a thing. https://en.wikipedia.org/wiki/Compressed-air_vehicle https://en.wikipedia.org/wiki/Compressed-air_vehicle https://en.wikipedia.org/wiki/Compressed_air_car https://en.wikipedia.org/wiki/Compressed_air_car