Kinetic Energy Recovery Systems. Bringing rodding into the 21st century. Recovering energy during deceleration that would otherwise be lost. For example, using a small onboard air compressor to charge an air bottle which in turn powers a compressed air motor. Or, alternatively, spinning up a flywheel while stopping.
dude there are post on this do a search http://www.jalopyjournal.com/forum/showthread.php?t=228983&highlight=energy+efficient if your building a hot rod on your spare time you should have some money to burn.
Thanks. Just throwing the idea out there because rodders are always looking for some way to make their car different.