The Scuderi engine could even boost mileage by recapturing energy normally lost during braking, as do hybrid cars. "Unlike current electric hybrids which store the energy in a battery, we are able to store energy in the form of compressed air," says Sal Scuderi. That can be done by simply adding a small air-storage tank, which costs far less than the generators and banks of batteries gas-electric hybrids need."
Yes! Radical new designs that can double efficiency...good stuff!