Some water valves are actuated manually, by a hand wheel or crank, or with mechanical devices such floats and cams. Others are actuated by electric, pneumatic, electro-hydraulic, or hydraulic methods.
Bentley took 24 of the 32 valves used by the ... wing mirror caps and area below the trunk spoiler. The car also includes black 22-inch, ten-spoke wheels, behind which are carbon ceramic brakes ...