By our reckoning, the GL350 with Mercedes-Benz’s excellent 3.0-liter, turbodiesel V-6 is the pick of the litter. Yes, there’s much to be said for the GL’s excellent V-8 options. Both the GL450 and GL550 are powered by biturbocharged V-8s, with the 450 packing 362 horsepower and 406 pound-feet of torque and the GL550 offering up 429 horsepower and 516 pound-feet of torque. We’d also need to give a shout out to the bonkers (and completely unnecessary) GL63 AMG and its 550 ponies.
