Franz wrote "....That does not save any fuel whatsoever. Not even one
tiny little smidgeon. *All* the energy of which you talk has come from
burning fuel. ....."

There I have to disagree with you, the battery is being charged all the time
the engine is running to propel the car, and the fuel consumption is the
same if the battery is charging or not.
I didn't say that you wouldn't have to have a much larger battery fitted to
get the power required


--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk