The 2013 Motegi GT 250km was the final round of the 2013 Super GT season, the 8th points scoring race for GT500 cars and the 9th for GT300 cars. It took place on November 3, 2013 at Twin Ring Motegi in Motegi, Tochigi, Japan.
Background
Kohei Hirate and Yuji Tachikawa led the championship for Team Cerumo, having scored 58 points. Following their win at the previous race, TOM'S drivers Kazuki Nakajima and James Rossiter were 2nd in the championship, four points behind Cerumo. Eight teams in GT500 had a theoretical chance at winning the championship entering the Motegi round. In GT300 Team Mugen had an eight-point lead over Goodsmile Racing's Tatsuya Kataoka and Nobuteru Taniguchi, while in GT300 only five teams had a possibility of winning the championship. The Balance of Performance was re-adjusted in GT300, the air restrictor sizes for the Honda CR-Z and Subaru BRZ were returned to their sizes that were at the Fuji 300km round.
Because Motegi was the final round of the championship, teams that competed in all rounds of the championship had their weight ballast removed, all cars with the exception of the #5 Team Mach Nissan GT-R GT3 ran without weight ballast. Unlike other rounds which are normally 300km in length, Motegi is only a 250km race. 38 cars entered the final round at Motegi, the #360 Tomei Sports Nissan GT-R GT3 not entering Motegi was the only change from the Autopolis entry list.
Report
Practice
The #38 Team Cerumo Lexus SC430 was fastest GT500 car in practice while the #100 Team Kunimitsu Honda HSV-010 GT was second fastest. In GT300 The #11 Gainer Mercedes-Benz SLS AMG GT3 set the fastest time from the #16 Team Mugen Honda CR-Z. The #37 TOM'S SC430 caused the first red flag 17 minutes into the session after spinning off at the final turn. A second red flag came out 40 minutes in after the car that was fastest at the end of the session, #38 Team Cerumo SC430 spun off at turn 2. The #19 Bandoh SC430 also had a problem and stopped on circuit with 20 minutes remaining.
Qualifying
Qualifying was held on November 2, 2013. In the first session for all GT300 cars the championship leader, the Team Mugen Honda CR-Z with Yuhki Nakayama was fastest from the #11 Gainer SLS. The session was red flagged as Takashi Kobayashi spun off at the hairpin and was unable to rejoin the circuit, and would have to start the race from the rear of the grid. The only championship-contending team eliminated in Q1 for GT300 was the #52 SLS with Hironori Takeuchi driving. In the first GT500 session Masataka Yanagida was fastest for NISMO, 2nd went to Takashi Kogure. Both Frédéric Makowiecki and James Rossiter, driving for teams that entered Motegi 3rd and 4th in the championship respectively failed to make the cutoff for the second session.
In the second GT300 session Kota Sasaki was fastest in the #61 Subaru BRZ, scoring the team's 5th pole position of the season and Sasaki's 10th in his career. Three of the 4 championship contending teams started in the top three, the GSR Hatsune Miku BMW that was 2nd in the championship would start 7th. Kazuya Oshima was fastest in the second GT500 qualifying session, setting a time a tenth faster than Koudai Tsukakoshi. The championship leading team would start 4th.
Race
The race was held on November 3, 2013. Oshima started the #6 SC430 from pole position and kept his lead while Tetsuya Yamano was able to lead from the start in GT300, but on lap 4, Björn Wirdheim had overtaken Yamano for the lead, Wirdheim in the #11 Gainer SLS being able to lap much faster than anyone else in the class. On lap 4 in GT500 Kohei Hirate in the #38 SC430 passed Toshihiro Kaneishi in the #17 HSV-010 for 2nd and was then under attack from multiple cars behind. Oshima and Wirdheim kept extending their leads in their respective classes throughout the first stint, Oshima building nearly 20 seconds over Hirate and Wirdheim had nearly 40 seconds on 2nd.