2023 Super GT Series

Vehicle changes

GT300

• apr replaced their Toyota GR Sport Prius PHV with a new hybrid GT300 car, the Lexus LC500h GT. The Prius had served as apr's flagship car since 2012.
• After selling their Toyota 86 Mother Chassis to Team Mach in the off-season, Anest Iwata Racing with Arnage changed to the Lexus RC F GT3.
• Pacific Racing Team replaced their Ferrari 488 GT3 Evo with a Mercedes-AMG GT3 Evo.

Entrant changes

GT500

• * TOM'S saw Sacha Fenestraz left the series to compete in Formula E with Nissan. TOM's drivers Ritomo Miyata and Giuliano Alesi exchanged cars, with Miyata going to the number 36 team and Alesi going to the number 37 with new sponsorship from Deloitte. Alesi would share the car with former Honda driver Ukyo Sasahara, who officially joined Toyota on 12 January 2023.Honda: Honda Racing announced their GT500 class driver line-ups on 12 December 2022.
• * Mugen Motorsports and ARTA formed a strategic alliance, competing with two ARTA Mugen-branded cars under the ARTA entrant name. Toshiki Oyu moves over to the number 8 ARTA Mugen car to partner Tomoki Nojiri. In exchange, Nirei Fukuzumi moved to the number 16 car to partner Hiroki Otsu, who joined ARTA after three seasons at Nakajima Racing.
• * Kakunoshin Ohta who raced with Team UpGarage GT300 stepped up fromto take Otsu's place at Nakajima Racing, alongside Takuya Izawa.Nissan: Nissan announced their GT500 class driver line-ups on 27 January 2023.
• * Team Impul carried the GT500 champions number 1 plate. Kazuki Hoshino the son of team founder Kazuyoshi Hoshino, became the new Team Director. Four years after the merger between Impul's longtime title sponsor Calsonic and Magneti Marelli, the Marelli brand replaced Calsonic on the blue Impul Nissan Z, now entered as the "Marelli Impul Z".
• * NDDP Racing signed spark plug manufacturer Niterra as their new main sponsor, to replace specialty dealer CraftSports.

GT300

• Team UpGarage recruited Reigning F4 Japan Champion Syun Koide following Ohta's promotion to the GT500 class.
• After forming a two-car GT500 programme with M-TEC, ARTA ceased their GT300 operation.
• 2016 GT300 champion Takamitsu Matsui transferred from Hoppy Team Tsuchiya to Team Mach, replacing Reiji Hiraki who switch to his HELM Motorsports in Super Taikyu ST-X class.
• 2013 GT300 champion Yuhki Nakayama left apr as he switch to Super Taikyu ST-X class with TKRI. Reigning Super Formula Lights champion Kazuto Kotaka replaced Nakayama in the number 31 apr team, with GT World Challenge Europe Endurance Cup driver Yuki Nemoto signed as the third driver for long-distance rounds. Yuta Kamimura and reigning Porsche Carrera Cup Japan champion Ryo Ogawa would share the role of third driver in the number 30 apr GR86 GT.
• Augusto Farfus left Team Studie as he switch to IMSA SportsCar GTP class. His replacement was another BMW factory driver and 2012 DTM champion Bruno Spengler. Two-time GT500 and GT300 champion Masataka Yanagida was signed to be the third driver and replaced Spengler in the event of calendar clashes. The entrant name was changed from BMW Team Studie x CSL to BMW Team Studie x CRS. From the fourth round onward the entrant name was changed again, to BMW M Team Studie x CRS.
• 2008 GT300 champion Hironobu Yasuda moved to the number 10 GAINER team to partner second-year driver Riki Okusa. In exchange, Ryuichiro Tomita moved to the number 11 car to partner Keishi Ishikawa. Yusuke Shiotsu, previously the third driver of the number 10 car, became the third driver of the number 11 car for long-distance rounds.
• After 8 years racing with Tsuchiya Engineering, Takamitsu Matsui left the team to Team Mach. Togo Suganami returned to the series after a year away after he competed in Super Formula Lights with B-Max Racing Team where he finished 7th in the standings.
• Equipment manufacturer Anest Iwata established a racing team, and partnered up with Arnage Racing to compete as "Anest Iwata Racing with Arnage". Ryohei Sakaguchi and Masaki Kano left the team for Pacific Racing Team and R&Q's Motor Sports respectively. The team signed multi-time Gran Turismo World Series champion and former FIA Formula 3 Championship driver Igor Fraga made his series debut after not racing for over two years, and 2021 Formula Regional Japanese Champion Yuga Furutani. 2022 Formula Regional Japanese Champion Miki Koyama was named the third driver and became the first woman to race in the series since Cyndie Allemann in 2012.
• Furniture retailer Yogibo having previously sponsored Drago Corse in 2021 season, returned to Super GT and competed as "Yogibo Racing". The team entered a Honda NSX GT3 and received technical support from Servus Japan, who previously supported ARTA. The team signed F4 Japanese Championship graduates Yugo Iwasawa and Reimei Ito after both finished 5th and 7th respectively.
• Two-time GT300 championship runner-up Hiroki Katoh was appointed as Inging's new team director and shifted to a part-time driving role as the team's third driver.Replacing Katoh would be 2020 FIA F4 Japan Champion Hibiki Taira as began his first full season in the series after previously served as the third driver for apr.
• Reigning GT300 champion Kiyoto Fujinami left Kondo Racing, 2021 Super Formula Lights champion Teppei Natori returned to the series with defending series champions after competed in Super Taikyu ST-Z with Team ZeroOne and a one off appearance with Tomei Sports last year. Kondo Racing declined the option to use the number 0 plate reserved for the reigning GT300 series champions and instead kept the number 56.
• Drago Corse, who dropped out of the 2022 season due to sponsorship issues, did not return to the series in 2023. Masataka Yanagida move to Studie as the third driver, and Yuji Ide left the series once again.
• Pacific Racing Team ended their collaboration with CarGuy Racing after the 2022 season. Pacific signed an all-new driver line up with former Arnage driver Ryohei Sakaguchi and China Endurance Championship driver Liang Jiatong. While race winner Shintaro Kawabata hired the third driver for the team.
• Seiya Jin, Shinnosuke Yamada, Masaki Kano, Takumi Sanada, and Takuya Otaki were announced as the third drivers of Team LeMans, SHADE Racing, R'Qs MotorSports, NILZZ Racing, and Tomei Sports respectively.

Mid-season changes

GT500 Class

• Iori Kimura was named as the third driver for the number 8 ARTA Mugen NSX-GT. Kimura's appointment came after Toshiki Oyu suffered a fractured collarbone prior to the Super Formula race at Fuji Speedway on 16 July. Oyu was eventually declared fit to race, so Kimura did not run in practice, qualifying, or the race.
• Naoki Yamamoto suffered a neck injury in a crash at Sportsland Sugo which forced him to miss the final two races of the season. Iori Kimura was named as his replacement.

GT300 Class

• Yuta Kamimura replaced Hiroaki Nagai in the number 30 apr Toyota GR86 for the opening round of the series. Nagai returned for round two, and Ryo Ogawa made his series debut as the team's third driver. Kamimura and Ogawa alternated third driver duties throughout the season, with Ogawa running both races at Fuji, and Kamimura running both races at Suzuka plus the Autopolis round.
• Pacific Racing Team missed the second round at Fuji after a crash at Okayama. They returned from the third round onwards.
• Masaya Kono replaced NILZZ Racing's Yuki Tanaka for rounds two and three. Tanaka withdrew prior to the fourth round at Fuji and was not replaced. Kono would join Taiyo Ida and Takumi Sanada for the fifth round at Suzuka, and Tanaka returned for the sixth round at Sugo.
• Roberto Merhi signed with Mahindra Racing in the FIA Formula E World Championship, replacing Oliver Rowland for the remainder of the 2023 season. Due to a clash of dates between the third round at Suzuka and the Jakarta ePrix, Merhi did not race at Suzuka.
• JLOC debuted the new Lamborghini Huracán GT3 EVO2 at the fourth round at Fuji Speedway. The number 88 team ran with a brand new EVO2 chassis, while the number 87 team would use the old number 88 GT3 EVO model following a heavy crash at Suzuka, which destroyed their previous chassis.
• Hoppy Team Tsuchiya's Toyota GR Supra GT300 was destroyed in a vehicle fire during the fourth round at Fuji Speedway, and the car and team would not return for the rest of the season.
• On 23 August, Max Racing announced their immediate withdrawal from the Super GT Series. They were scheduled to miss the fifth round at Suzuka due to a vehicle fire sustained in the previous round at Fuji.
• 2018 GT300 Champion and K2 R&D LEON Racing team director, Haruki Kurosawa, entered the fifth round at Suzuka as the team's third driver. It is Kurosawa's first Super GT appearance as a driver since the 2019 Fuji GT 500 Mile Race.
• Seita Nonaka joined Saitama Toyopet GreenBrave as a third driver for the seventh round at Autopolis.
• Yuki Nemoto replaced Koki Saga in the number 31 apr Lexus LC500h for the final round at Motegi.
• Time attack and gymkhana specialist Yusaku Shibata rejoined Tomei Sports for the final round at Motegi, driving alongside Takayuki Aoki.

Results

Round	Circuit	Class	Pole position	Fastest lap	Race winner
1	Okayama International Circuit	GT500	No. 23 NISMO	No. 100 Team Kunimitsu	No. 23 NISMO
1	Okayama International Circuit	GT500	''' Championship standings Drivers' championships ;Scoring system Position 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th Pole Points 20 15 11 8 6 5 4 3 2 1 1 GT300 Rank Driver Team OKA FUJ1 SUZ1 FUJ2 SUZ2 SUG AUT MOT Points 1 Teams' championships ; Race points Position 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th Points 20 15 11 8 6 5 4 3 2 1 Additionally, teams received points for completed the race behind the race winner:  Same lap as the race winner   1 lap behind the race winner   2 laps or more behind the race winner  Points 3 2 1 GT300 Rank Team OKA FUJ1 SUZ1 FUJ2 SUZ2 SUG AUT MOT Points 1 No. 52 Saitama Toyopet GreenBrave 51 31 31 91 Ret 11 11 71 95 2 No. 2 muta Racing INGING 182 21 21 111 71 Ret 21 91 71 3 No. 56 Kondo Racing 101 11 41 41 Ret 101 51 61 70 4 No. 7 BMW M Team Studie × CRS 61 132 11 21 161 132 82 121 64 5 No. 88 JLOC 24†3 61 211 81 41 142 71 1 61 6 No. 65 K2 R&D LEON Racing 21 41 121 25†3 Ret 61 122 21 61 7 No. 61 R&D Sport 223 112 61 61 31 4 41 101 59 8 No. 31 apr 161 81 131 51 61 11 31 41 57 9 No. 18 Team UpGarage 11 Ret Ret 171 11 DSQ 171 81 56 10 No. 6 Team LeMans 213 71 151 31 Ret 31 152 31 55 11 No. 11 GAINER Ret 172 51 11 151 122 92 131 46 12 No. 4 Goodsmile Racing & Team UKYO 91 Ret 181 121 51 51 61 111 40 13 No. 10 GAINER 111 51 81 71 131 91 101 161 39 14 No. 87 JLOC 71 Ret 231 161 21 192 193 213 35 15 No. 20 SHADE Racing Ret 122 101 151 182 21 132 141 34 16 No. 96 K-tunes Racing 142 91 221 233 81 81 Ret 51 33 17 No. 50 Anest Iwata Racing with Arnage 121 142 171 191 101 72 112 171 27 18 No. 60 LM Corsa 81 23†3 71 101 121 213 203 151 26 19 No. 27 Yogibo Racing 41 152 201 202 91 182 Ret Ret 25 20 No. 244 Max Racing 31 162 161 Ret 19 21 No. 30 apr 131 183 91 131 171 Ret 162 233 18 22 No. 5 Team Mach 151 223 191 181 213 223 183 181 16 23 No. 360 Tomei Sports Ret 193 143 143 143 152 142 241 15 24 No. 9 Pacific Racing Team 23†3 WD 251 222 111 172 233 192 14 25 No. 48 NILZZ Racing 192 203 251 212 192 203 223 203 13 26 No. 22 R'Qs Motor Sports 20 2 213 262 243 203 162 213 223 11 27 No. 25 Hoppy Team Tsuchiya 171 101 111 Ret 10 Rank Team OKA FUJ1 SUZ1 FUJ2 SUZ2 SUG AUT MOT Points