The transmission supplies the engine with a system of gears. The function of the gears is to transmit the power that is produced by the engine. There are two types of transmissions: a standard transmission and an automatic transmission.
The clutch pedal in standard transmission cars connects or disconnects the gears from the engine. A driver controls this action by stepping on and releasing the clutch pedal. Speed is obtained by shifting gears and by stepping on the gas pedal, or accelerating. Gears are shifted manually by using the gear shift lever. In cars with automatic transmissions, this is accomplished automatically in the transmission.