[Phantom]

I think that a smaller hydraulic hybrid system in a car could help. Mostly use it as a mild hybrid use it to remove the starter for quick starts at lights so you can start moving when the engine is starting. It would help with city driving that is stop and go and could recharge if needed at anytime the car is stopping. With a smaller system it would be likely that it would reach full capacity when there is still time to "charge" it so a secondary valve could be added to bleed the pressure off and power accessories. It would send pressure to what would essentially be half a turbo with a freewheeling pulley on the other side.