The purpose of the present invention is to efficiently arrange a power steering device inside the engine compartment so as to ensure sufficient leg room for a user. The present invention comprises: an engine 6； a transmission case 7 to which the drive from the engine 6 is transmitted； a steering shaft 41 for transmitting the steering force of a steering wheel 15 to wheels； and a power steering device 61 for applying steering assisting force to the steering shaft 41. The power steering device 61 is configured as an electrically-operated device which applies the drive power of an electric motor 62 to the steering shaft 41 supported by the top of the transmission case 7, wherein the engine 6, steering shaft 41, and power steering device 61 are arranged inside the engine compartment and the electric motor 62 is disposed rearwardly of the engine 6 and forwardly of the steering shaft 41 in terms of the front-rear direction.於引擎蓋內將動力轉向裝置有效率地配置，確保使用者腳下充份的空間。具備引擎6、被傳達來自該引擎6的驅動力之變速箱7、將方向盤15的轉向力向車輪傳達之轉向軸41、及向其轉向軸41賦予轉向輔助力之動力轉向裝置61，動力轉向裝置61係構成為：將電動馬達62的驅動力賦予轉向軸41之電動型，轉向軸41被支撐在變速箱7的上部，引擎蓋內配置有引擎6、轉向軸41及動力轉向裝置61，電動馬達62係配置在前後方向中比引擎6還後方側且比轉向軸41還前方側。
