But what about the zero-point modules in atlantis ? Kidding... Seriously though look at the current car motor. Very full of energy losses that can be recovered and used. Hot engine, hot exhaust, hell we even intentionaly shed heat via the radiator. If someone develops a way to recover all this low-grade heat we can boost car efficiency. What is it now currently ? 15% 20% ? There is still space there to boost efficiency five fold.