Ring Knutstorp is a motor racing circuit in Kågeröd, Sweden. The circuit was built in 1963 and extended to its present configuration in 1970. During the seventies, rounds of the Formula Three European Cup were held at the circuit, with winners including Alain Prost. Ring Knutstorp hosts rounds of the Swedish Touring Car Championship, and is a playable track in the video game, STCC – The Game.