A governor is added to an engine to control or limit engine speed or road speed. 为了控制或限制发动机转速或行驶车速，发动机上装有限速器。
The world fine provided in the same rank vehicle type the only sign to prepare the constant speed cruise and the overspeed preventer. 世嘉配备了同级别车型中唯一标备了定速巡航与限速器。
