Mercedes’ updated and upgraded G55 AMG which, if the rumble under the hood is any indication, will be powered by the M157 5.5 liter biturbo V8. With 540 horsepower on tap, this relatively lightweight powerplant also has a torque rating of 590 lb-ft.  That combination of horsepower and torque in the G-Wagon should make it practically unstoppable on and off ...

AMG 6.3 litre front-mounted mid-engine   The advanced AMG 6.3-litre V8 motor makes the Mercedes-Benz SLS AMG one of the most powerful sports cars in its class. The V8 high-speed engine with 6208 cc capacity is a completely modified version of the AMG 6.3-litre V8 basic engine. The 8-cylinder engine responds to the slightest movement of the accelerator with Superb agility across ...