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 cars entered by Japan's big three manufacturers for the then-new formula were initially the Nissan Primera, Honda Civic Ferio, Accord, and Toyota Corona as well as the E110 Corolla.

In 1998, the withdrawals of Nissan due to financial problems and Honda leaving to concentrate on its Formula One program (at the time, an engine supply operation by Mugen Motorsports) and also realising it would be less expensive for them to race their NSX in the Japanese Grand Touring Championship left Toyota as the sole factory manufacturer to have cars competing using their Corona EXIVs and Chasers.

Both Nissan and Honda did take part in the British Touring Car Championship after leaving the JTCC, however those programs were run by their respective European branches with independently managed budgets and teams.

[4] During the championship's life, one fatal accident occurred: Akira Hagiwara was killed in a 1986 Sportsland SUGO testing session after he crashed into a barrier and his car burst into flames.

[5] (Italics indicates co-driver who scored the same number of points as first place, but was classified second due to completing less mileage) The JTC-1 class, also known as Division 1, was eligible for cars with displacements of 2,501 cc or higher.