Production Car Racing
Production car racing or known in the US as showroom stock, is an economical and rules restricted version of touring car racing, mainly to restrict costs.
Many series follow the Group N regulation with a few exceptions. There are several different series that is run all over the world, most notably, Japan's Super Taikyu and IMSA's Firehawk Series which ran between the 1980's to 1990's all over the United States.