The following article states the case of a new method of capturing electricity for use in automotive applications. While they are speaking mainly of supercapacitors capturing the energy from braking, it adds another piece to the puzzle of how our future vehicles will continue to advance. While most articles on the internet have terrible comments sections below, this one actually seems to be adding to the conversation (at the time this is published at least). I can envision a car made from super strong graphene sheets (carbon fiber like only lighter, stronger and cheaper) using new age batteries collecting power from braking, solar paint, and redirected wasted energy from the motor. It won't be 100% efficient, but we seem to be getting closer to vehicles that aren't huge energy wasting vortexes.
http://green.autoblog.com/2013/12/01/korean-engineers-find-graphene-electrodes-recharge-in-seconds/
