What parts did BMW valvetronic save? Throttle or intake valve

BMW uses Valvetronic electronic valves, which are really not traditional valves. Valvetronic electronic valves have less fuel consumption and better performance. Valvetronic electronic valves allow you to get more fun from BMW engines. This cutting-edge technology replaces the traditional throttle by electronically controlling the lift of the intake valve on each cylinder. In this way, your engine can power itself. ...