What is it?
The new Mercedes-Benz GL-Class is a seven-passenger luxury SUV that uses the same basic platform as the new M-Class SUV and R-Class crossover. (The original, military-derived G-Class is a truck-based vehicle best suited for off-road use.) The new GL-Class is a unibody design, but promises more off-road capability than the M-Class. Power will come from a 4.6-liter, 335-hp V8 that will be mated to a seven-speed automatic transmission. All four wheels are driven by Mercedes-Benz's full-time 4Matic all-wheel-drive system. The tow rating is 7,500 pounds, and an optional adjustable air suspension can raise the SUV by 12 inches. Safety equipment includes side air bags for the first two rows of seats and curtain air bags that cover the windows of all three rows. The third-row seat can be raised and lowered electronically.
CR's take:
The GL is essentially a stretched, higher-priced ML with three-row seating and more features. But the biggest news, perhaps, is the possible availability of a diesel-powered SUV in the U.S. A concept version of the GL was shown with one of DaimlerChrysler's new Bluetec diesel engines, which the company claims are compliant with stringent 2009 emissions regulations and are the cleanest diesels in the world. It estimates that such an engine would allow the large GL to provide 25 mpg, which would easily be the best in its class. Mercedes said it has no immediate production plans for a diesel version of the GL, but an official mentioned its possible use in the M-Class and R-Class. With nearly 400 pound-feet of torque, the diesel would bode well for towing, as well as fuel economy.
What is new or notable?
The GL is bristling with high-tech goodies. But it's especially noteworthy that this is an all-wheel-drive vehicle that offers serious off-road capability as an option. Its Off-Road Pro option package features a two-speed transfer case, which provides a lower gear range, and locking center and rear differentials. For those who don't go off-roading they're not burdened with the weight of a full four-wheel drive system; for those who do, it's just a check on the option sheet.
