Races are held across Japan's major motor racing circuits in formats including single five-hour events and double-header weekends of two three-hour races. The series' flagship event is the Fuji Super TEC 24 Hours, held annually at Fuji Speedway since its revival in 2018. Prior to that, the Tokachi 24 Hours served as the series' largest event from 1994 through 2008. From 2026, series organisers have created companion series for national amateur drivers under the Super Taikyu Challenge banner, with a further entry-level category planned.
The series runs several competition classes across a range of technical regulations. The original four classes — ST-1 through ST-4 — are based on FIA Group N production car regulations, with displacement and drivetrain layout determining eligibility within each class. A fifth production class, ST-5, was introduced in 2010.
International classes were progressively added from 2011 onwards. ST-X covers cars built to SRO GT3 specifications, introduced originally as ST-GT3. ST-Z accommodates SRO GT4 cars and was established in 2017, as was ST-TCR for vehicles homologated to the international TCR touring car class. In 2021, the ST-Q class was introduced for manufacturer-developed non-homologated prototype vehicles, based on ADAC NLS SP-X regulations, providing a regulated environment for manufacturers testing alternative powertrain technologies. A further class, ST-USA, for American GT machinery including the Chevrolet Corvette GT3 and Ford Mustang Dark Horse R, was announced for introduction at Fuji in November 2025.
The ST-Q class has become a prominent platform for Japanese manufacturers conducting research into sustainable propulsion. Toyota and ROOKIE Racing entered a modified Corolla Sport fitted with a hydrogen-powered internal combustion engine from the 2021 season, making it one of the earliest competitive applications of hydrogen combustion technology in motorsport. In 2023, the hydrogen Corolla became the first race car in the world to operate on liquid hydrogen. Subaru entered synthetic fuel-compatible versions of the BRZ, Nissan fielded a Fairlady Z racing concept, and Mazda ran a biodiesel Mazda3 Bio Concept. Honda introduced a carbon-neutral fuel variant of the Civic Type R in 2023. The ST-Q class has consequently positioned Super Taikyu as a global proving ground for next-generation automotive technology under race conditions.
Yokohama supplied tyres to the series until the end of 2017. Pirelli held a three-year contract as the exclusive tyre supplier from 2018 to 2020. Hankook took over as tyre supplier in 2021 under a three-year deal, but a fire at Hankook's manufacturing plant in Daejeon on 12 March 2023 prompted an early transition. Bridgestone signed a new three-year contract and assumed tyre supply responsibilities with immediate effect from 24 April 2023, and currently holds the naming rights as a title sponsor alongside Eneos.
A fatal accident occurred during a 2012 race at Suzuka Circuit, held as a support event to the FIA WTCC Race of Japan. Osamu Nakajima, driving a Nissan Fairlady Z, died following a crash into a barrier at the first corner of the circuit.
Super Taikyu occupies a distinct place in Japanese motorsport as the accessible counterpart to the elite Super GT series, providing a competitive environment for amateur and semi-professional drivers alongside professionals in genuine endurance racing conditions. Its embrace of the ST-Q class has elevated the series' international profile, drawing scrutiny from automotive engineers and sustainability advocates far beyond the traditional motorsport audience. The annual Fuji Super TEC 24 Hours serves as the emotional centrepiece of the Japanese endurance racing calendar.