The turbo-alternator isn't a good idea, if you want more efficiency for a N/A engine you should make it normal turbo, and if your car is turbo the restriction of a high rpm/low force alternator isn't good either at 100%, now if you put the alternator in the turbo, well you could have better efficiency of engine less pressure on exhaust means better performance on engine.
And about BMW i know that in the 2010 m5 there was a electricity generator taking heat form the exhaust.
The temperature idea is cheaper and more efficient i think, but its expensive.
Last edited by Viturro; 03-02-2013 at 01:24 PM..
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