Tsuchiya Engineering is a team located in Fujisawa, Kanagawa, founded by Haruo Tsuchiya, and now ran by his son, Takeshi.

The Japanese Touring Car Championship was a former touring car racing series held in Japan. The series was held under various regulations during its existence, including international categories such as Group A and Super Touring, which allowed both Japanese and foreign built cars to compete. The final edition of the championship was held in 1998, although a failed attempt at a relaunch was planned for 2012. A relaunched series, the TCR Japan Touring Car Series, began in 2019, using TCR regulations.