It appears that Japanese manufacturer MAZDA aren't giving up on the internal combustion engine just yet. They're looking a triple charged engine concept featuring two exhaust driven turbo's and an electrically driven super charger.
http://www.msn.com/en-gb/cars/news/...d-triple-charged-engine/ar-AAqjRwu?li=BBoPJKX
Tony.
http://www.msn.com/en-gb/cars/news/...d-triple-charged-engine/ar-AAqjRwu?li=BBoPJKX
Tony.