Abstract: An elevator mechanism is disposed in the rear portion for rotating the rear panel of the vehicle and includes two pairs of links pivotally coupled in parallel between two couplers and a support of the vehicle so as to stably support the coupler. An actuator is coupled between the support and the coupler for moving the coupler upward and downward. A panel is pivotally coupled to the upper portion of the coupler and an actuator is coupled between the bottom of the panel and the middle portion of the coupler for rotating the panel about the upper portion of the coupler.