Exterior & Styling

Particularly from the rear, the GL's appearance looks a bit like Mercedes' original M-Class. The 21-inch wheels, oversized grille and chrome running boards on my test car gave it a look similar to that of Mercedes' AMG performance cars — perhaps that was the intention, given that there is no AMG GL-Class — and should secure the car a front-row spot at most valet stands.

Less-expensive GLs have 18- or 19-inch wheels. An optional offroad package on the GL450 raises the air suspension to yield 12 inches of ground clearance — some 2 inches higher than a Hummer H2's. The package also has a two-speed transfer case and locking center and rear differentials.

    See also:

    Activating/deactivating the MONOfunction
    The MONO function is only available with automatic climate control.18 You can use the MONO function to adopt the settings configured for temperature, air distribution and airflow on the driver's s ...

    Important safety notes
    WARNING Make sure absolutely no objects are obstructing the pedals' range of movement. Keep the driver's footwell clear of all obstacles. If there are any floormats or carpets in the footwell ...

    Trailer towing
    When towing a trailer and driving downhill, shift to the lower gear if the automatic transmission constantly shifts between two gears. Engaging a lower gear and reducing the speed reduces the ...