AMSHIFT is a system, first fitted to the 2017MY manual V12 Vantage S, which is driver selectable uses clutch, gear position and propshaft sensors, together with finely-tuned programming of the engine management, to mimic the technique of heel-and-toe downshifts; the act of blipping the throttle while braking and changing gear. AMSHIFT also offers the capability of full-throttle upshifts for maximum smoothness and minimal interruption in acceleration.