See also:

Winter driving
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MUTE button (if equipped)
Press this button if you wish to immediately cut the volume to zero. The audio display will show “MUTE”. If you press the button again, the original sound volume will return and “MUTE” turns off. ...

Manhart Unleashes the C63 S E Performance with 725hp
In a bold move, Manhart has taken the already potent hybrid C63 and pushed it to new heights of performance. While power and torque were never lacking in the hybrid C63, that didn't deter Manhart fr ...