2011 BMW 550 Gran Turismo review

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Adjusting the volume
Turn the volume button while giving an instruction until the desired volume is set. ► The volume remains constant even if the volume of other audio sources is changed. ► The volume i ...

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

Start/Stop button
Pressing the Start/Stop button switches radio readiness or the ignition on or off. Manual transmission: if you press the Start/Stop button and depress the clutch, the engine starts. Automatic ...