A new technology in Seebeck Devices enabled by a recently developed insight into quantum size effects means we can expect new devices in the future to be able to harvest as much as 40% of waste heat as electricity. Given that the waste heat component of an engine is about 70%, this means new automotive engineering approaches could allow a very small internal combustion engine to generate enough electricity to charge film capacitors and batteries to double or triple MPG while providing electric car like acceleration with lighter weight, lower cost and far longer range. Is this something the Tesla community would find interesting? Is Tesla the most likely candidate to introduce such a breakthrough?