>What worries me more is the possibility that the oil industry has spies with control over this "secrecy order". The fabled "200 mile per gallon carburetor" typ

>What worries me more is the possibility that the oil industry has spies with control over this "secrecy order". The fabled "200 mile per gallon carburetor" type stuff. >It is quite easy for me to believe that a trillion dollar industry would attempt to protect itself by any means possible. all the engineering calculations for a car you can make yourself starting from the first principles, like http://en.wikipedia.org/wiki/Carnot_cycle http://en.wikipedia.org/wiki/Carnot_cycle http://en.wikipedia.org/wiki/Fluid_dynamics http://en.wikipedia.org/wiki/Fluid_dynamics etc... It would be very interesting if you can come up for 200mpg goal with better shape or lighter design or better in some other way than that http://green.autoblog.com/2013/04/01/vw-hints-hyper-efficient-260-mpg-xl1-could-come-to-us/ http://green.autoblog.com/2013/04/01/vw-hints-hyper-efficien...