What do you make of it? It's the future of BMW's I guess, I'm not sure myself?
Hybrids are just pointless, it makes no sense to have to completely different power sources in the car, and given most hybrids have a tiny EV range they essentially become 'normal' petrol cars as soon as you have discharged the small battery.
Not really, they allow the petrol engine to operate at peak efficiency at all times so they consume less fuel for the same amount of power output. It's widely used on ships and trains.