A soap box mock car construction and time trial will be held with the cooperation of the Japan International Soap Box Derby as one of the many visitor hands-on experience events. In this event, participants will assemble wooden mock cars on the spot and compete in time trials on a 10-meter long course mounted with measuring equipment. Parents and children can participate together in mock car construction and time trials in this family event. Each session is 90 minutes, with the first 45 minutes spent in a class format for mock car construction and the second 45 minutes spent on the time trials. Soap box cars (actual vehicles) and panels are also scheduled to be exhibited.