The JGTCestablished in 1993[1][2] by the JAF (Japanese Automobile Federation) via its subsidiary company the GT-A (GT Association)replaced the defunct All Japan Sports Prototype Championship for Group C cars (that was terminated by the end of 1994) and in the same year Japanese Touring Car Championship for Group A touring cars, which would adopt the supertouring formula which was used worldwide. Seeking to prevent the spiraling budgets and one-team/make domination of both series, JGTC imposed strict limits on power, and heavy weight penalties on race winners in an openly-stated objective to keep on-track action close with an emphasis on keeping the race goers happy.
In its first ever race, which was also an IMSA GT exhibition race, apart from the GTS and GTU cars from the U.S. series, as with the rest of the season, the grid consisted of mostly Japan Sport Sedan cars with the only genuine JGTC cars being two Nissan Skyline GT-Rs entered by NISMO, which were in fact modified Group A cars. The prototypes and European GT cars would only appear one race to be joined by the IMSA and Group N cars at the Suzuka 1000 km.
For the following season, the series would undergo a rules overhaul, class 1 for cars similar to that of the FIA's GT1 category and class 2 for cars that were the equivalent to the GT2 category. The JSS series would altogether dissolve into the latter category. What made the series more significant was compared to the series from other countries, JGTC teams had at the time the freedom to enter whichever cars they preferred, even if it was the JSS cars from the inaugural season and IMSA GTS spaceframe racers. The Group C prototypes, whilst easily showing dominant form, were banished at the end of the 1994 season.
By the end of the season, as the cost of attaining a FIA's GT1 cars shot through the roof dramatically, in order to keep costs down and determined not to go the same way as the JSPC series it replaced, the GT-A would go through another rules overhaul. This time was a change adoption of the newly formed GT500 and GT300 regulation which capped cars depending on weight and brake horsepower with an air restrictor. In 2002, the GT-A made another rule change, this time because the series had been intended to be a GT championship; this meant all competing cars must remain as two doors, while a special waiver was given to allow Cusco Racing to race their Subaru Impreza sedan.
The JGTC would first venture abroad with its first oversea race at Sepang International Circuit, Malaysia and after another successive year, the Malaysian race would become a regular championship fixture. After GT-A's abortive attempt at hosting a street race in Shanghai, the series would also venture into the United States with an exhibition race to be run with the D1 Grand Prix exhibition event in the Los Angeles area-California Speedway in Fontana, held during the week before Christmas in December 2004, which was not shown to be a success, since then no exhibition event was held until in 2010 season, which will be held in Fuji Speedway.
