Mercedes-Benz on Twitter: "5.5-liter V8 biturbo. 585 hp, 900 Nm of torque. Still, the #S63 #AMG Coupé is the most efficient model in it's class. http://t.co/xGWHgKPoZk" / Twitter
Mercedes' AMG 5.5L twin-turbo V8 not long for this world? - Autoblog
Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard - Green Car Congress
Mercedes-Benz Phasing Out 5.5L Twin-Turbo V8 » AutoGuide.com News
Mercedes-AMG - A member of the new-generation V8 engine family from AMG, the M177 4.0-liter V8 Biturbo engine is a close relative of the M178 – the sports-car heart of the new
Mercedes E-Class Coupe Gets AMG Bi-Turbo V8 Engine Swap by Mcchip - autoevolution