# 2025 Super GT Series

The 2025 Autobacs Super GT Series is a planned motor racing championship based in Japan for grand touring cars. The series is sanctioned by the Japan Automobile Federation (JAF) and run by the GT Association (GTA). It will be the thirty-third season of the JAF Super GT Championship, which includes the All Japan Grand Touring Car Championship era, and the twenty-first season under the Super GT name. It will be also the forty-third overall season of a national JAF sportscar championship dating back to the All Japan Endurance/Sports Prototype Championship.
TGR Team au TOM'S of Sho Tsuboi and Kenta Yamashita entered the season as the defending champions of the GT500 class. And JLOC Takashi Kogure and Yuya Motojima entered the season as the defending champions of the GT300 class.

## Calendar

The provisional calendar for 2025 was confirmed on 1 August 2024, which consists of eight races. The series will race abroad for the first time since 2019, and they will return to race at Sepang International Circuit for the first time since 2013.
| Round | Circuit | Location | Dates |
| 1 | Okayama International Circuit | Mimasaka, Okayama Prefecture | 12–13 April |
| 2 | Fuji Speedway | Oyama, Shizuoka Prefecture | 3–4 May |
| 3 | Sepang International Circuit | Sepang, Selangor, Malaysia | 27–28 June |
| 4 | Fuji Speedway | Oyama, Shizuoka Prefecture | 2–3 August |
| 5 | Suzuka Circuit | Suzuka, Mie Prefecture | 23–24 August |
| 6 | Sportsland Sugo | Murata, Miyagi Prefecture | 20–21 September |
| 7 | Autopolis | Hita, Oita Prefecture | 18–19 October |
| 8 | Mobility Resort Motegi | Motegi, Tochigi Prefecture | 1–2 November |

## Regulation changes

The GTA confirmed several changes for the 2025 Super GT season.
After a year of using the aggregate qualifying format, the qualifying system will revert back to the knockout format. For GT500 qualifying, 10 cars will advance to Q2 instead of 8 which previously held before. And for the GT300, 9 cars will advance to Q2 from 2 groups of 14 cars. The qualifying points of rewarding top 3 cars will be scrapped, and revert back to awarding a single point for pole position in both classes.
There will be changes in the GT300 drivers' and teams’ championship points, classified top 15 finishers will be able to collect points up from 10 finishers. The winner will be awarded 25 points while 2nd place will receive 20 points. 3rd place will revive 16 points, then 4th and 5th will get 13 and 11 points respectively, and from 6th to 15th, 10 points down to 1 point will be awarded. Also, races over 700km in length or four hours in duration no longer have a fixed points system, instead this will be announced by the series in advance of each round.
Teams are allowed to bring in 4 sets of dry and 6 sets of wet tyres for the 300km races. New: One wet tyre set must be functioning in heavy rain conditions. From Round 2 onward, GT500 tyre manufacturers who haven't won a race in 2024 may bring in one extra dry set.
During the formation lap, the distance to the car in front should be within 5 car lengths to avoid a spread out start. To avoid slow driving to save fuel when driving to the grid, a speed minimum of 80 km/h or more has to be maintained. Infractions will see a time penalty applied, along with the previous grid penalty and drive-through penalty.
To comply with a new FIA standard, carbon helmets will be mandatory from this season onward with satisfactory helmets given GTA stickers. However, there will be a grace period for drivers who can't obtain one for the opening race.

## Teams and drivers
### GT500

| Team | Make | Car | Engine | No. | Drivers | Tyre | Rounds |
| TGR Team au TOM'S | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 1 | Sho Tsuboi | B | TBC |
| TGR Team au TOM'S | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 1 | Kenta Yamashita | B | TBC |
| TGR Team Deloitte TOM'S | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 37 | Ukyo Sasahara | B | TBC |
| TGR Team Deloitte TOM'S | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 37 | Giuliano Alesi | B | TBC |
| NISMO NDDP | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 3 | Daiki Sasaki | B | TBC |
| NISMO NDDP | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 3 | Atsushi Miyake | B | TBC |
| NISMO | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 23 | Katsumasa Chiyo | B | TBC |
| NISMO | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 23 | Mitsunori Takaboshi | B | TBC |
| ARTA | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 8 | Tomoki Nojiri | B | TBC |
| ARTA | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 8 | Nobuharu Matsushita | B | TBC |
| ARTA | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 16 | Hiroki Otsu | B | TBC |
| ARTA | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 16 | Ren Sato | B | TBC |
| Team Impul | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 12 | Kazuki Hiramine | B | TBC |
| Team Impul | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 12 | Bertrand Baguette | B | TBC |
| TGR Team ENEOS ROOKIE | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 14 | Kazuya Oshima | B | TBC |
| TGR Team ENEOS ROOKIE | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 14 | Nirei Fukuzumi | B | TBC |
| Astemo Real Racing | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 17 | Koudai Tsukakoshi | B | TBC |
| Astemo Real Racing | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 17 | Syun Koide | B | TBC |
| TGR Team WedsSport Bandoh | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 19 | Yuji Kunimoto | Y | TBC |
| TGR Team WedsSport Bandoh | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 19 | Sena Sakaguchi | Y | TBC |
| Kondo Racing | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 24 | Tsugio Matsuda | Y | TBC |
| Kondo Racing | Nissan | Nissan Z NISMO GT500 | Nissan NR4S24 2.0 L Turbo I4 | 24 | Teppei Natori | Y | TBC |
| TGR Team KeePer Cerumo | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 38 | Hiroaki Ishiura | B | TBC |
| TGR Team KeePer Cerumo | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 38 | Toshiki Oyu | B | TBC |
| TGR Team SARD | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 39 | Yuhi Sekiguchi | B | TBC |
| TGR Team SARD | Toyota GR | Toyota GR Supra GT500 | Toyota RI4BG 2.0 L Turbo I4 | 39 | Sacha Fenestraz | B | TBC |
| Modulo Nakajima Racing | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 64 | Takuya Izawa | D | TBC |
| Modulo Nakajima Racing | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 64 | Riki Okusa | D | TBC |
| Stanley Team Kunimitsu | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 100 | Naoki Yamamoto | B | TBC |
| Stanley Team Kunimitsu | Honda | Honda Civic Type R-GT | Honda HR-420E 2.0 L Turbo I4 | 100 | Tadasuke Makino | B | TBC |

### GT300

| Team | Make | Car | Engine | No. | Drivers | Tyre | Rounds |
| JLOC | Lamborghini | Lamborghini Huracán GT3 Evo 2 | Lamborghini DGF 5.2 L V10 | 0 | Takashi Kogure | Y | TBC |
| JLOC | Lamborghini | Lamborghini Huracán GT3 Evo 2 | Lamborghini DGF 5.2 L V10 | 0 | Yuya Motojima | Y | TBC |
| JLOC | Lamborghini | Lamborghini Huracán GT3 Evo 2 | Lamborghini DGF 5.2 L V10 | 87 | Kosuke Matsuura | Y | TBC |
| JLOC | Lamborghini | Lamborghini Huracán GT3 Evo 2 | Lamborghini DGF 5.2 L V10 | 87 | Natsu Sakaguchi | Y | TBC |
| Hyper Water Racing INGING | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 2 | Yuui Tsutsumi | B | TBC |
| Hyper Water Racing INGING | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 2 | Hibiki Taira | B | TBC |
| Hyper Water Racing INGING | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 2 | Kazuhisa Urabe | B | TBC |
| Goodsmile Racing & Team UKYO | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 4 | Nobuteru Taniguchi | Y | TBC |
| Goodsmile Racing & Team UKYO | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 4 | Tatsuya Kataoka | Y | TBC |
| Goodsmile Racing & Team UKYO | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 4 | Yuhki Nakayama | Y | TBC |
| Goodsmile Racing & Team UKYO | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 4 | Shunji Okumoto | Y | TBC |
| Team Mach | Toyota | Toyota 86 MC GT300 | GTA V8 4.5 L V8 | 5 | Yusuke Shiotsu | Y | TBC |
| Team Mach | Toyota | Toyota 86 MC GT300 | GTA V8 4.5 L V8 | 5 | Iori Kimura | Y | TBC |
| Velorex | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 6 | Yoshiaki Katayama | Y | TBC |
| Velorex | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 6 | Roberto Merhi Muntan | Y | TBC |
| CarGuy MKS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 7 | Zak O'Sullivan | Y | TBC |
| CarGuy MKS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 7 | Rikuto Kobayashi | Y | TBC |
| CarGuy MKS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 7 | Takeshi Kimura | Y | TBC |
| CarGuy MKS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 7 | Keita Sawa | Y | TBC |
| Pacific Racing Team | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 9 | Ryohei Sakaguchi | Y | TBC |
| Pacific Racing Team | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 9 | Yusuke Tomibayashi | Y | TBC |
| Pacific Racing Team | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 9 | Yuta Fujiwara | Y | TBC |
| GAINER Anest Iwata Racing | Nissan | Nissan Fairlady Z GT300 (RZ34) | Nissan VR38DETT 3.8 L Twin Turbo V6 | 11 | Ryuichiro Tomita | D | TBC |
| GAINER Anest Iwata Racing | Nissan | Nissan Fairlady Z GT300 (RZ34) | Nissan VR38DETT 3.8 L Twin Turbo V6 | 11 | Kazuki Oki | D | TBC |
| GAINER Anest Iwata Racing | Lexus | Lexus RC F GT3 | Lexus 2UR-GSE 5.4 L V8 | 26 | Igor Omura Fraga | Y | TBC |
| GAINER Anest Iwata Racing | Lexus | Lexus RC F GT3 | Lexus 2UR-GSE 5.4 L V8 | 26 | Hironobu Yasuda | Y | TBC |
| Team UpGarage | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 18 | Takashi Kobayashi | Y | TBC |
| Team UpGarage | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 18 | Yuto Nomura | Y | TBC |
| SHADE Racing | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 20 | Katsuyuki Hiranaka | M | TBC |
| SHADE Racing | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 20 | Eijiro Shimizu | M | TBC |
| SHADE Racing | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 20 | Yuki Sano | M | TBC |
| R'Qs Motor Sports | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 22 | Hisashi Wada | Y | TBC |
| R'Qs Motor Sports | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 22 | Masaki Jyonai | Y | TBC |
| R'Qs Motor Sports | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 22 | Masaki Kano | Y | TBC |
| R'Qs Motor Sports | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 22 | Yuma Shoji | Y | TBC |
| Hoppy Team Tsuchiya | Toyota GR | Toyota GR Supra GT300 | Toyota 2UR-GSE 5.4 L V8 | 25 | Takamitsu Matsui | Y | TBC |
| Hoppy Team Tsuchiya | Toyota GR | Toyota GR Supra GT300 | Toyota 2UR-GSE 5.4 L V8 | 25 | Kimiya Sato | Y | TBC |
| apr | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 30 | Hiroaki Nagai | M | TBC |
| apr | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 30 | Manabu Orido | M | TBC |
| apr | Toyota GR | Toyota GR86 GT300 | Toyota 2UR-GSE 5.4 L V8 | 30 | Ryo Ogawa | M | TBC |
| apr | Lexus | Lexus LC 500h GT | Lexus 2UR-GSE 5.4 L Hybrid V8 | 31 | Oliver Rasmussen | B | TBC |
| apr | Lexus | Lexus LC 500h GT | Lexus 2UR-GSE 5.4 L Hybrid V8 | 31 | Miki Koyama | B | TBC |
| apr | Lexus | Lexus LC 500h GT | Lexus 2UR-GSE 5.4 L Hybrid V8 | 31 | Yuki Nemoto | B | TBC |
| PONOS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 45 | Kei Cozzolino | D | TBC |
| PONOS Racing | Ferrari | Ferrari 296 GT3 | Ferrari F163CE 3.0 L Twin Turbo V6 | 45 | Lilou Wadoux | D | TBC |
| NILZZ Racing | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 48 | Taiyo Ida | Y | TBC |
| NILZZ Racing | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 48 | Yusaku Shibata | Y | TBC |
| Saitama Green Brave | Toyota GR | Toyota GR Supra GT300 | Toyota 2UR-GSE 5.4 L V8 | 52 | Hiroki Yoshida | B | TBC |
| Saitama Green Brave | Toyota GR | Toyota GR Supra GT300 | Toyota 2UR-GSE 5.4 L V8 | 52 | Seita Nonaka | B | TBC |
| Kondo Racing | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 56 | João Paulo de Oliveira | Y | TBC |
| Kondo Racing | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 56 | Kohei Hirate | Y | TBC |
| Kondo Racing | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 56 | Yu Kanamaru | Y | TBC |
| LM corsa | Lexus | Lexus LC 500 GT | Lexus 2UR-GSE 5.4 L V8 | 60 | Hiroki Yoshimoto | D | TBC |
| LM corsa | Lexus | Lexus LC 500 GT | Lexus 2UR-GSE 5.4 L V8 | 60 | Shunsuke Kohno | D | TBC |
| LM corsa | Lexus | Lexus LC 500 GT | Lexus 2UR-GSE 5.4 L V8 | 60 | Reimei Ito | D | TBC |
| R&D Sport | Subaru | Subaru BRZ GT300 (ZD8) | Subaru EJ20 2.0 L Turbo F4 | 61 | Takuto Iguchi | D | TBC |
| R&D Sport | Subaru | Subaru BRZ GT300 (ZD8) | Subaru EJ20 2.0 L Turbo F4 | 61 | Hideki Yamauchi | D | TBC |
| HELM Motorsports | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 62 | Yuya Hiraki | Y | TBC |
| HELM Motorsports | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 62 | Reiji Hiraki | Y | TBC |
| K2 R&D LEON Racing | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 65 | Naoya Gamou | B | TBC |
| K2 R&D LEON Racing | Mercedes-AMG | Mercedes-AMG GT3 Evo | Mercedes-AMG M159 6.2 L V8 | 65 | Togo Suganami | B | TBC |
| K-tunes Racing | Lexus | Lexus RC F GT3 | Lexus 2UR-GSE 5.4 L V8 | 96 | Morio Nitta | D | TBC |
| K-tunes Racing | Lexus | Lexus RC F GT3 | Lexus 2UR-GSE 5.4 L V8 | 96 | Shinichi Takagi | D | TBC |
| Tomei Sports | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 360 | Takayuki Aoki | Y | TBC |
| Tomei Sports | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 360 | Rin Arakawa | Y | TBC |
| Tomei Sports | Nissan | Nissan GT-R Nismo GT3 | Nissan VR38DETT 3.8 L Twin Turbo V6 | 360 | Hironobu Shimizu | Y | TBC |
| Seven x Seven Racing | Porsche | Porsche 911 GT3 R (992) | Porsche M97/80 4.2 L Flat-6 | 666 | Kiyoto Fujinami | Y | TBC |
| Seven x Seven Racing | Porsche | Porsche 911 GT3 R (992) | Porsche M97/80 4.2 L Flat-6 | 666 | Tsubasa Kondo | Y | TBC |
| D'station Racing | Aston Martin | Aston Martin Vantage AMR GT3 Evo | Aston Martin AMR16A 4.0 L Turbo V8 | 777 | Tomonobu Fujii | D | TBC |
| D'station Racing | Aston Martin | Aston Martin Vantage AMR GT3 Evo | Aston Martin AMR16A 4.0 L Turbo V8 | 777 | Charlie Fagg | D | TBC |

### Vehicle changes
#### GT300

* Team UpGarage has acquired Mercedes-AMG GT3 Evo to replace Honda NSX GT3 Evo22 which had raced with the team for six seasons.
* LM corsa has switched their Toyota GR Supra GT300 which had raced for four seasons, to the Lexus LC 500 GT.

### Entrant changes
#### GT500

* Honda announced its driver line-ups on 11 December 2024.
** Kakunoshin Ohta has left Real Racing and the series to compete in the IMSA SportsCar Championship's GTP class with Meyer Shank Racing. The team has signed 2024 Super Formula Lights champion Syun Koide, who previously drove for Team UpGarage in the GT300 class for over two seasons.
* Toyota announced its driver line-ups on 25 December 2024.
** au TOM'S has elected to use the GT500 champion's number "1".
** Yuichi Nakayama, who has raced with SARD for six years, leaves the team and the series to focus on the Super Taikyu ST-Q with GR Team Spirit. Sacha Fenestraz returns to the series after a two-year stint in Formula E with Nissan, replacing Nakayama. This move reunites him with Yuhi Sekiguchi for the first time since 2020.
* 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 to take up the role of NISMO ambassador and advisor to the GT500 program. Mitsunori Takaboshi promoted to the main NISMO team from NDDP to replace the retired Quintarelli, reuniting him with Katsumasa Chiyo, whom he raced in the NDDP for two seasons in 2022 and 2023. Daiki Sasaki returned to GT500 after spending a year in GT300 with Kondo Racing, taking over Takaboshi's NDDP seat.
** Marelli, which sponsored Team Impul before with previous brand Calsonic for over 43 years, ended their association. Tokyo Radiator will be the team main sponsor.

#### GT300

* Anest Iwata ended its association with Arnage Racing after two years. Arnage would not continue to race after 11 years in the series, however they continue to operate R'Qs Motor Sports. Anest Iwata Racing operated independently with GAINER. Yuga Furutani left the team, as he focus on his Super Formula Lights campaign with TOM'S. 2008 GT300 champion Hironobu Yasuda returns to the series after a year in Super Taikyu ST-Z with Techno First.
* apr have a new lineup for the Lexus car following the departure of both Kazuto Kotaka and Jin Nakamura from the series. Kotaka focuses on Super Formula with TGMGP and also serve as the reserve driver for GT500 Toyota, while Nakamura moves to FRECA with R-ace GP. The team promoted Miki Koyama from their Super Taikyu ST-X program, Koyama previously raced as the fourth driver with R'Qs Motor Sports. The team also signed Oliver Rasmussen, who will make his debut in the series after competed in the WEC's Hypercar class with Jota Sport. The GR86 car switched from Yokohama to Michelin tires. Rikuto Kobayashi left the team to join CarGuy MKS Racing. Manabu Orido returns as the full-time driver after a year served as the team's third driver, with Ryo Ogawa returns to take the third driver role after a year away in Super Taikyu ST-4 with Endless Sports.
* As Syun Koide moves to GT500 with Real Racing, 2024 F4 Japanese champion Yuto Nomura joins Team UpGarage for his Super GT debut.
* Car wash equipment manufacturer Hyper Water replaced muta as INGING Motorsport title sponsor, and the team will compete under the name Hyper Water Racing INGING. The team also signed former F4 TGR-DC Racing School driver Kazuhisa Urabe as the third driver, while Hiroki Katoh focus on his management role with the team.
* TGR-DC F4 Japan driver Yuki Sano joins SHADE Racing as the third driver.
* Togo Suganami left Tsuchiya Engineering as he moves to LEON Racing. Kimiya Sato promoted back to full-time driver after served as the team's third driver for a year.
* Porsche makes its Super GT return for the first time since 2021. FCR-Vita & Kyojo Cup team KF Motorsport will make their debut in Super GT as they backed by Hotel chain Seven x Seven (read as seven times seven), racing under the Seven x Seven Racing guise. The team entered a Porsche 911 GT3 R (992) car with Yokohama Tires. Two-time GT500 champion and team owner Kiyoto Fujinami moved from Team Mach, along with Porsche Carrera Cup Japan champion Tsubasa Kondo as he returns to the series after competed in GT World Challenge Asia with Porsche Centre Okazaki.
* GAINER get technical support from Nissan. Keishi Ishikawa left the team after competed with them for five seasons. Super Taikyu ST-Z driver Kazuki Oki joins the team where previously served as the third driver for the final round last season.
* With Daiki Sasaki promoted back to GT500 with NISMO NDDP, Two time GT500 champion Kohei Hirate returns to Kondo Racing from HELM Motorsports. Kondo also signed GT World Challenge Asia Silver-Am runner-up with Team 5ZIGEN, Yu Kanamaru as their third driver.
* As Kohei Hirate moves to Kondo Racing, HELM Motorsports promoted their third driver and co-owner Reiji Hiraki.
* Tomei Sports saw Takuya Otaki leave the team, and team owner owner Atsushi Tanaka was listed to drive for this season, instead switched his focus to race in SRO Japan Cup. The team promoted their third driver Rin Arakawa, who raced in Super Formula Lights with B-Max Racing Team. Arakawa's third seat filled by F4 Japan race winner Hironobu Shimizu, who competed with Drago Corse in 2024.
* PONOS Racing has established themselves as a standalone operation after previously operated by GAINER. The team changed their tire supplier from Michelin to Dunlop.
* Reigning Porsche Carrera Cup Japan champion Reimei Ito return to LM corsa as their third driver after appeared in the same role with them for the last round of last season.
* 2024 GT300 runner-up Takuro Shinohara leaves LEON Racing as he moves to Super Taikyu ST-Z with Team ZeroOne. Togo Suganami reunited with the team for the first time since 2021, as he moved from Team Tsuchiya.
* R'Qs Motor Sports signed Super Taikyu ST-3 driver Yuma Shoji as the fourth driver to replace Miki Koyama who moves to apr.
* JLOC has elected to use the GT300 champion's number "0".
* Team LeMans rebranded their team as Velorex.
* Studie left the series after competed for 5 years since their return for the second time in 2020, as they switch to compete in GT World Challenge Asia. Race winner Seiji Ara follows Studie to race in GT World Challenge Asia. Niklas Krütten left the series after one season to compete in International GT Open with Team Motopark, while Bruno Spengler left the team to join Bugatti as their official driver.
* CarGuy Racing returns to the series after 2 year hiatus as they partnered up with MKS Racing, a new team created by former Yogibo Racing team director, Misato Haga. They took over the no. 7 spot previously used by Studie, and competing under the name CarGuy MKS Racing. They entered a Ferrari 296 GT3 with Yokohama tire. They signed former Williams Academy driver Zak O'Sullivan, who will make his debut in the series after competed in Formula 2 with ART Grand Prix and 2024 Super Formula Lights runner-up Rikuto Kobayashi joins the team from apr, he was planned to join Saitama Green Brave as the third driver. CarGuy's owner Takeshi Kimura appointed as the third driver alongside team director role, and 2015–16 Asian Le Mans GT champion Keita Sawa as the fourth driver.
* Team Mach saw Kiyoto Fujinami left the team as he moves to Seven x Seven Racing. Former Honda driver and 2023 Super Formula Lights champion Iori Kimura returned to the series after a year in Super Formula with B-Max Racing Team.

### Mid-season changes
#### GT300

* Goodsmile Racing recruited 2013 GT300 champion Yuhki Nakayama and reigning Super Taikyu ST-2 champion Shunji Okumoto for the Sepang round, as both Nobuteru Taniguchi and Tatsuya Kataoka not available due to 24 Hours of Spa commitment.

## Championship standings
### Drivers' championships
#### Scoring system

| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | 12th | 13th | 14th | 15th | Pole |
| GT500 Points | 20 | 15 | 11 | 8 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| GT300 Points | 25 | 20 | 16 | 13 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 1 |

### Teams' championships
#### Scoring system

| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | 12th | 13th | 14th | 15th | Lead Lap | -1 Lap | -2 Laps | -3 Laps or more |
| GT500 Points | 20 | 15 | 11 | 8 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 1 |
| GT300 Points | 25 | 20 | 16 | 13 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 3 | 3 | 2 | 1 |