New for 2011

A new eight-speed automatic transmission is standard on the 2011 models and replaces a six-speed automatic. The xDrive35i has BMW's new single-turbo 3.0-liter inline six-cylinder (replacing a twin-turbo). Tapping technology normally found in hybrids, the 2011 X6 gets regenerative braking that charges the battery only when the car is braking, coasting or decelerating. BMW says this improves fuel economy up to 3 percent.

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    Cargo
    Despite the X6's sloping back end, the SUV has more cargo room than a two-row X5: 25.5 cubic feet as opposed to the X5's 21.9 cubic feet. The FX, meanwhile, has 24.8 cubic feet of space. If you ne ...

    Close the windows and glass sunroof
    Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

    Strength of the driver's and front passenger airbag
    The strength with which the driver's and front passenger airbags are triggered depends on the position of the driver's and front passenger seats. To maintain the accuracy of this function over ...