Going primarily by fuel consumption, as we do here at High Gear Media, the all-new 2011 Jeep Grand Cherokee is significantly greener than last year's model--if you choose the new 3.6-liter Pentastar V-6, that is. At a high of 16 mpg city, 23 highway with 2WD, the 2011 Grand Cherokee with the base engine gets 2 mpg better than the outgoing Grand Cherokee, though fuel economy with the Hemi V-8 is unchanged.
That said, most large V-6 crossover vehicles--some of them with three rows of seating--have fuel economy ratings that are a mile or two per gallon better than the Grand Cherokee. The reason? The Grand Cherokee's somewhat older-tech five-speed automatic might be part of it, as might be its more portly weight, near 5,000 pounds--perhaps the price of rugged off-road ability.