The Circuit Wolf is a shōnen adventure and racing manga published in Japan as Circuit no Ōkami (サーキットの狼Saakitto no Ōkami). It was serialized in Weekly Shōnen Jump from January 1975 to June 1979. The sequel to Circuit no Ōkami, Circuit no Ōkami II: Modena no Tsurugi(サーキットの狼II―モデナの剣Saakitto no Ōkami - Modena no Ken), was also published by Shueisha. Circuit no Ōkami II: Modena no Tsurugi also animated as an OVA, released December 21, 1990. The live action film of Circuit no Ōkami, directed by Kazuhiko Yamaguchi, was released in Japan on August 6, 1977.