Front wheels Co., Ltd. has published a test race program with JapaneseOtakuCity. The game is developed in with Unity and tested with the dive dive.
JapaneseOtakuCity (zenrin Co., Ltd.) http://www.zenrin.co.jp/product/service/3d/asset/. To speed up the gam ea little, the deveoloper erased some models. They say the full game is wonderful.