1986 2.8L V-6 Pontiac Fiero - convert from speed-density to mass flow

[LeMarky Dissod]

do you leave the batteries isolated and charge them when you get home? otherwise having zero parasitic loss is physically impossible.
the energy to turn that thing has to come from somewhere, and the losses from a motor driving a generator driving a motor will always be greater than driving it directly because physics.
you're just moving or spreading out the loss with energy storage

While this is absolutely true, IF one had enough battery to store enough energy prior to (say) a 1/4 mile run, the parasitic load could be minimized during that following 1/4 mile run.

Makes me think of precompressed air 'supercharging' ...