The 2025 Autobacs Super GT Series was a motor racing championship based in Japan for grand touring cars. The series was sanctioned by the Japan Automobile Federation (JAF) and ran by the GT Association (GTA). It was the thirty-third season of the Super GT Series, which includes the All Japan Grand Touring Car Championship era, and the twenty-first season under the Super GT name. It was also the forty-third overall season of a JAF national sports car championship dating back to the All Japan Endurance/Sports Prototype Championship.
Sho Tsuboi and Kenta Yamashita of TGR Team au TOM'S entered the season as the defending champions of the GT500 class. Takashi Kogure and Yuya Motojima of JLOC entered the season as the defending champions of the GT300 class.
Calendar The provisional calendar for 2025 was confirmed on 1 August 2024, which consisted of eight races. Super GT confirmed that Petronas Sepang International Circuit would return to the calendar for the first time since 2013, hosting the third round of the championship on 27–28 June. This would be the first Super GT race held outside of Japan since 2019, when the series last visited Chang International Circuit in Thailand.
On 14 May, Fuji Speedway announced a new three-race sprint format for its August date. The first race, held on 2 August, would be a 160 kilometer (35 lap) multi-class race. The second and third races, held on 3 August, would be single-class, 50-minute sprint races – the first time ever that GT500 and GT300 cars would race separately in a championship round. Only one of the team's two entered drivers could participate on either day.
All other rounds would run the regular 300 kilometer format except for the Golden Week race at Fuji, and the penultimate round at Autopolis, which would continue to run the three-hour, long-distance format introduced in 2024.
Round Race Circuit Location Dates 1 Okayama GT 300 km Race Okayama International Circuit Mimasaka, Okayama Prefecture 12–13 April 2 Fuji GT 3 Hours Race GW Special Fuji Speedway Oyama, Shizuoka Prefecture 3–4 May 3 Super GT Malaysia Festival 2025 Sepang International Circuit Sepang, Selangor, Malaysia 27–28 June 4 Fuji GT Sprint Race Fuji Speedway Oyama, Shizuoka Prefecture 2–3 August 5 Suzuka GT 300 km Race Suzuka Circuit Suzuka, Mie Prefecture 23–24 August 6 Sugo GT 300 km Race Sportsland Sugo Murata, Miyagi Prefecture 20–21 September 7 Autopolis GT 3 Hours Race Autopolis Hita, Oita Prefecture 18–19 October 8 Motegi GT 300 km Race Grand Final Mobility Resort Motegi Motegi, Tochigi Prefecture 1–2 November
Regulation changes The GTA confirmed several regulation changes for the 2025 Super GT season.
The series reverted to the two-part knockout qualifying format used from 2013 to 2023. The only change from 2023 was the number of cars that would participate in Q2. In GT500, the top 10 cars in Q1 would advance to Q2, instead of the top eight. In GT300, where the field is split into two groups for Q1, the top nine cars in each group advance to Q2, meaning that 18 cars would participate in Q2 (instead of 16). The Fuji GT Sprint Race qualifying format consisted of a single 20-minute GT300 session and a 10-minute GT500 session, held each morning before the races on Saturday and Sunday. The GT300 championship points system was changed, awarding 25 points to the first place team and drivers, 20 for second, 16 for third, then 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, and 1 for the top 15 cars. In addition, only the seven highest-scoring rounds counted towards the drivers' and teams' championships at the end of the season. This was to accommodate only 18 full-time GT300 teams being eligible to enter the Sepang round due to limited garage space. For the Fuji GT Sprint Races, each race would award half points, and the points from both races would be added up at the end of both races. The points would be awarded to both entered drivers regardless of their individual results in each race. In both classes, qualifying points reverted to awarding only one point to the pole-winning team and drivers. The GT300 success weight formula was changed, including the modification of refueling times as a form of success ballast. The nominal success weight limit was raised back to 100 kilograms (instead of 80 kg), but the maximum amount of physical ballast that could be loaded remained at 50 kg. Cars that attained more than 50 kg of nominal success weight would have to install a GTA-supplied refueling restrictor, the diameter of which would be announced in a pre-race bulletin. From the second round onward, GT500 tire manufacturers that have not won a race during the season may bring in one extra set of dry tires per weekend. All teams must bring at least one set of heavy rain tires. During the reconnaissance lap, all cars must maintain a minimum speed of 80 kilometers per hour. From the formation lap until the start of the race, all cars must be within five car lengths of the car in front. Race control can now impose time penalties during a race for various infractions.
Teams and drivers GT500 Team Make Car Engine Drivers Tire Rounds TGR Team au TOM'S Toyota GR Toyota GR Supra GT500 Toyota RI4BG 2.0 L Turbo I4 1 Sho Tsuboi All Kenta Yamashita TGR Team Deloitte TOM'S 37 Ukyo Sasahara All Giuliano Alesi NISMO NDDP Nissan Nissan Z NISMO GT500 Nissan NR4S25 2.0 L Turbo I4 3 Daiki Sasaki All Atsushi Miyake NISMO 23 Katsumasa Chiyo All Mitsunori Takaboshi ARTA Honda Honda Civic Type R-GT Honda HR-420E 2.0 L Turbo I4 8 Tomoki Nojiri All Nobuharu Matsushita 16 Hiroki Otsu All Ren Sato Team Impul Nissan Nissan Z NISMO GT500 Nissan NR4S25 2.0 L Turbo I412 Kazuki Hiramine All Bertrand Baguette TGR Team ENEOS ROOKIE Toyota GR Toyota GR Supra GT500 Toyota RI4BG 2.0 L Turbo I4 14 Kazuya Oshima All Nirei Fukuzumi Astemo Real Racing Honda Honda Civic Type R-GT Honda HR-420E 2.0 L Turbo I4 17 Koudai Tsukakoshi All Syun Koide TGR Team WedsSport Bandoh Toyota GR Toyota GR Supra GT500 Toyota RI4BG 2.0 L Turbo I4 19 Yuji Kunimoto All Sena Sakaguchi Kazuto Kotaka2, 7 Kondo Racing Nissan Nissan Z NISMO GT500 Nissan NR4S25 2.0 L Turbo I424 Tsugio Matsuda All Teppei Natori TGR Team KeePer Cerumo Toyota GR Toyota GR Supra GT500 Toyota RI4BG 2.0 L Turbo I4 38 Hiroaki Ishiura All Toshiki Oyu TGR Team SARD Toyota GR Toyota GR Supra GT500 Toyota RI4BG 2.0 L Turbo I4 39 Yuhi Sekiguchi All Sacha Fenestraz Modulo Nakajima Racing Honda Honda Civic Type R-GT Honda HR-420E 2.0 L Turbo I4 64 Takuya Izawa All Riki Okusa Stanley Team Kunimitsu Honda Honda Civic Type R-GT Honda HR-420E 2.0 L Turbo I4 100 Naoki Yamamoto All Tadasuke Makino
Entrant & driver changes Honda announced its driver line-ups on 11 December 2024. Astemo Real Racing driver Kakunoshin Ohta left the series to compete part-time in the IMSA SportsCar Championship's GTP class with Acura Meyer Shank Racing. 2024 Super Formula Lights champion Syun Koide, who previously drove for Team UpGarage in the GT300 class, was promoted to GT500 to replace Ohta. Honda Racing Corporation took over vehicle maintenance for Stanley Team Kunimitsu, replacing Auto Technic Japan (ATJ). Toyota announced its driver line-ups on 25 December 2024. TGR Team au TOM'S elected to use the GT500 champion's number "1" plate after retaining its two championship-winning drivers from the previous season. TGR Team SARD driver Yuichi Nakayama left the team after six seasons to focus on various international programs in Europe, including a GT World Challenge Europe Endurance Cup campaign with Nordique Racing. Former TOM'S driver Sacha Fenestraz returned to the series after a two-year stint in Formula E with Nissan, replacing Nakayama. Nissan announced its line-ups on 17 January 2025. Four-time GT500 champion Ronnie Quintarelli retired from the Super GT Series after the 2024 season, becoming a NISMO ambassador and an advisor to the GT500 program. Mitsunori Takaboshi was promoted to the flagship NISMO team from NISMO NDDP to replace Quintarelli, reuniting him with Katsumasa Chiyo Daiki Sasaki returned to GT500 after spending a year in GT300 with Kondo Racing, replacing Takaboshi at NISMO NDDP. Tokyo Radiator will take over primary sponsorship of Team Impul from Marelli, which though its predecessor Calsonic, had been the team's primary sponsor since 1982.
Mid-season changes Toyota Gazoo Racing GT500 reserve driver Kazuto Kotaka joined TGR Team WedsSport Bandoh as the team's third driver for the long-distance rounds at Fuji and Autopolis.
GT300