The 18th Symposium of the International Association for Vehicle System Dynamics was held at Kanagawa Institute of Technology, Atsugi, Kanagawa, Japan. The symposium was hosted by KAIT as one of the memorial events of the 40th anniversary of KAIT. Though overwhelming numbers of high quality papers were applied in response to the call for papers for the presentation at the symposium, the Scientific Committee accepted 89 papers for the oral presentation and 38 for the poster presentation. Finally, 82 papers were presented at the oral sessions and 29 papers at the poster sessions in the symposium. There were five state-of-the-art papers presented at the plenary sessions in the symposium.