The redesigned 2013 Mercedes-Benz GL-Class is set to go on sale this September, but Mercedes announced today that it will also be adding a sportier GL63 AMG model to the line-up early next year. The addition of the GL63 AMG means that heading into the 2013 model year, the only Mercedes-Benz product not to get an AMG model will be the compact GLK-Class SUV. Mercedes has yet to announce the pricing of the new GL63 AMG, but with the smaller ML63 AMG starting at $94,990, we would expect the souped-up GL to be priced well over $100,000.
Under the hood of the 2013 Mercedes-Benz GL63 AMG is an all-aluminum twin-turbocharged 5.5-liter direct-injected V-8 that produces 550 horsepower and 560 lb-ft of torque. Official curb weight has yet to be announced for the 2013 GL63 AMG, but Mercedes claims it will be able to accelerate from zero to 60 miles per hour in just 4.9 seconds - about a half second faster than the 2013 GL550 which weighs around 5,600 pounds - with an electronically limited top speed of 155 mph. Like other AMG models, the GL63's seven-speed automatic transmission features three drive modes (Controlled Efficiency, Sport and Manual) and the 4Matic all-wheel drive system help feed all the power to the ground. In "C" (controlled efficiency) mode, an ECO stop/start feature shuts the engine off when the vehicle is at a standstill to conserve fuel and reduce emissions. This mode should be very useful when not trying to beat out Porsche Cayennes and Jeep Grand Cherokee SRT8s, but the GL63 AMG should be at home in the Manual and Sport modes. Sport-tuned steering, air suspension and brake systems finish off the performance upgrades to the 2013 Mercedes-Benz GL63 AMG.