Autorace in Japan is unique and it's a huge gambling sport. The riders are hidden from view and seperated from their bikes until the start of a race. They race in virtual silence while the spectators wait to see how much cash they've won or lost!!! Autorace can trace its origins back to speedway and dirt track racing, but racing on dirt was banned in the 60s when the authorities took control of Autorace. The bikes are 600cc Suzuki SEAR engines (Suzuki Engine Auto Race) and the riders resemble dayglo Samurai Warriors.