The GL is a perfectly sized SUV. It is large enough to carry 6 people comfortably yet not so big that it looks like a behemoth coming down the road. Its size makes it very maneuverable and easy to drive for such a large vehicle. The GL320 Bluetec uses approximately 30% less fuel and polutes 30% less than other large SUVs. 500 miles in the city and 600 miles on the freeway are the normal fillup intervals. On the freeway, it handles better than most sedans. The steering is not loose but at the same time isn't so tight that the vehicle swerves every time you adjust the HVAC. The rearview mirrors were made larger in 2009. Any larger and they would look out of proportion to the vehicle.
Interior is beautiful. The Harmon Kardon is the best OEM stereo I have heard. The ride is incredible and has a perfect blend of comfort and firmness. Great sound of the diesel engine at idle and acceleration which turns completely quiet at cruise. The engine power is a dream once above 15 mph.
A single large DVD screen overhead so that both second and third rows can view a video. The diesel engine in the GL is sluggish from 0-15 mph. You think twice before you pull out in front of an oncoming car when making a left hand turn. This takes getting used to.