In this research, using an electric car as a motion platform we evaluated the user experience of motion representations in a virtual reality (VR) system. The system represents physical motion when it operates the car backward and forward with accompanying visual motion included in stereoscopic images in a head-mounted display (HMD). Image stimuli and car-based motion stimuli were prepared for three kinds of motion patterns, "starting", "stopping" and "landing", as experimental stimuli. In the experiment, pleasure and arousal were measured after each stimulus representation using the Self-Assessment Manikin (SAM), a questionnaire about emotions. Results showed that the car-based motion stimulus increased pleasure in the "landing" pattern.