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:

    Setting the rear-compartment air distribution using the rear control panel
    Turn the SmartKey to position 2 in the ignition lock. Press rocker switch 13 or 16 up or down repeatedly until the desired air distribution symbol is shown in the display. ...

    Setting the airflow
    Dual-zone automatic climate control •► Turn the SmartKey to position 2 in the ignition lock. •► To increase/reduce: press button 11 up or down 3-zone automatic climate control • ...

    Displays and controls
    1 Speedometer with segments 2 Multifunction display 3 Tachometer 4 Coolant temperature 5 Fuel gauge 6 Instrument cluster lighting brightness control: turn clockwise or counterclockwise ...