Power for the 2012 Mercedes-Benz ML63 AMG is come from the AMG 5.5-liter V8 biturbo engine features spray-guided gasoline direct injection with piezo injectors, ECO stop/start system, an all-aluminum crankcase, four valves per cylinder with camshaft adjustment, air-to-water charge air cooling and efficient alternator management, with a displacement of 5461cc producing power output of 518