The GL-Class is back unchanged, but an updated version is expected soon under the GLS name. For the time being, this crossover is available as the popular GL 350 BlueTEC (V6 turbodiesel with 455 lb.-ft. of torque), or the gas-powered twin-turbos that are the GL 450 (3.0-litre V6 with 362 horsepower), GL550 (4.7-litre V8 with 429 horsepower) and GL 63 AMG (5.5-litre V8 with 550 horsepower). All variants come with 4Matic all-wheel drive and a 7-speed automatic gearbox.