2013 Mercedes-Benz GL Class spy shots

When we caught sight of this heavily-cloaked GL-Class last summer, we thought Mercedes-Benz was just refreshing its big SUV with a cosmetic facelift and maybe a new engine. New reports seem to indicate that Mercedes-Benz may be launching an all-new, second-generation GL for 2013, however.

According to Car and Driver, the new GL will be based on the M-Class. A diesel V6 is said to be in the mix, along with the twin-turbo, 402-horsepower 4.6-liter V8 also found in the ML550. The new model will debut at the New York Auto Show in April, and should hit dealers later in the year.