Rob,

Actually you are dead wrong (once again!)

Energy can neither be created or destroyed but rather only changed from one form to another.....

So "always" is incorrect here... The truth might rather be that to produce energy, it must be derived from some other source and in a car there are not many sources of energy but electrical, kinetic, mechanical and occasionally solar are all donor sources

Hotshoe

ps: dontcha hate engineers????? (I'm not one either!)