A semi-automatic transmission is where by a number of the operation is automatic (often the actuation from the clutch), but the driver's enter is needed to move off from a standstill or to alter gears. Manual gearboxes Have got a prosperous history, courting back again into the late 19th century. https://alexishjhcy.blogs100.com/34636043/rumored-buzz-on-automobile-gearbox