The JGTC (Japanese Grand Touring Championship) was established in 1993 by the
Japan Automobile Federation (JAF) via its subsidiary company the GTA (GT Association), replacing the defunct
All Japan Sports Prototype Championship for
Group C cars and the
Japanese Touring Car Championship for
Group A touring cars, which instead would adopt the
supertouring formula. Seeking to prevent the spiraling budgets and one-team/make domination of both series, JGTC imposed strict limits on horsepower, and heavy weight penalties on race winners in an openly stated objective to keep on-track action close with an emphasis on keeping fans happy.
GT-R (R34). In its first season, the JGTC grid mostly consisted of cars, with the only genuine JGTC cars being a
Nismo-entered
Nissan Skyline GT-R and
Nissan Silvia S13, of which the GT-R was a modified AWD Group A car. An exception was the first race of the season, which was also an exhibition race of the
IMSA GT Championship, and therefore saw a contingent of GTS and GTU cars from the American series join the field. The
1000 km Suzuka also saw a greater variety of competitors, with Group C prototypes,
Group N touring cars, and GT cars from Europe and IMSA all joining the field. For the following season, the series would undergo a rules overhaul, creating a class for the
FIA's
GT1 category, and another for the
GT2 category. The JSS series would altogether dissolve into the latter category. What made the series more significant was that compared to other racing series, JGTC teams at the time had the freedom to enter whichever cars they preferred, even if it was the JSS cars from the inaugural season or spaceframe racers from the IMSA GTS class. However, the Group C prototypes, whilst easily showing dominant form, were banned from the series from the
1995 season onwards. By the end of the 1995 season, as the cost of obtaining and running a GT1 car had dramatically increased, the JGTC would go through another rules overhaul in order to lower costs and avoid the fate of the JSPC series it had replaced. The newly formed GT500 and GT300 regulations were adopted, which capped cars with air restrictors depending on their amount of weight and horsepower. While the regulations would continuously evolve, the GT500 and GT300 classes continue to form the top level of Japanese sports car racing today. ==The cars==