GT500 GT300 Vehicle changes GT500 • Toyota introduced the
Lexus SC 430 as their new GT500 vehicle, replacing the fourth-generation
Toyota Supra. This coincided with the introduction of the Lexus nameplate for the Japanese market in July 2005. Four teams (TOM'S, Cerumo, LeMans, and Kraft) would run the new SC430, while SARD and Tsuchiya Engineering continued to use the Supra. •
Team Goh planned to enter the series with a
Maserati MC12 GT1 driven by
Seiji Ara and
Jan Magnussen. Competing as Stile Corse, they participated in the pre-season test at Suzuka on 3–4 March, but after lacklustre results, the team scrapped their plans to race in GT500.
GT300 • Mooncraft Engineering and Cars Tokai Dream28 introduced the Shiden MC/RT-16, a prototype racing car based upon the
Riley Mk.XI Daytona Prototype powered by a
Toyota 1UZ-FE V8 engine. • DHG Racing debuted in the series with a new racing version of the
Ford GT supercar. The car was powered by the 3.5 litre DHG D35806V V8 engine, which was derived from the
Mugen MF308 engine previously used in the
Formula Nippon championship.
Team changes GT500 •
Kondo Racing, owned by Japanese musician and former racing driver
Masahiko Kondo, entered Super GT for the first time as a Nissan factory team. • Toyota teams TOM'S and Kraft scaled back to single-car teams after running two cars each in 2005. • Hitotsuyama Racing and their privately entered
Ferrari 550 GTS and
McLaren F1 GTR withdrew from the series.
GT300 •
M-TEC (Mugen) closed their GT300 team to focus on their ongoing technical alliance with Team Kunimitsu in GT500. •
Autobacs Racing Team Aguri (ARTA) closed their GT300 team. apr, who operated ARTA's GT300 programme, signed ARTA drivers Morio Nitta and Shinichi Takagi to drive their number 101 Toyota MR-S sponsored by Toy Story Racing (through Run'A Entertainment).
Driver changes GT500 •
Tsugio Matsuda transferred from Honda to Nissan, where he joined two-time GT500 champion
Satoshi Motoyama in the number 23
NISMO entry. Likewise,
Sakon Yamamoto transferred from Toyota to Nissan to partner another two-time GT500 champion,
Michael Krumm, in the NISMO number 22 car. •
Masataka Yanagida and two-time GT500 champion
Érik Comas joined the new Kondo Racing team. Yanagida transferred from NISMO, and Comas transferred from Hasemi Motorsport. •
Naoki Yokomizo transferred from Toyota to Nissan and joined Hasemi Motorsport, who also signed reigning All-Japan Formula 3 champion
João Paulo de Oliveira for his Super GT series debut. •
Kazuki Hoshino, son of Impul co-founder
Kazuyoshi Hoshino, stepped up to GT500 to join Team Impul. Hoshino replaced
Yuji Ide, who signed with
Super Aguri F1 Team. • Nakajima Racing and Honda signed two recent Formula 3 graduates to drive for them in 2006:
Formula 3 Euroseries graduate
Loïc Duval, and All-Japan F3 race winner
Hideki Mutoh. • 2005 GT300 championship runner-up Shinya Hosokawa was promoted to GT500 with Team Kunimitsu, partnering
Sébastien Philippe. •
André Lotterer transferred from Honda to Toyota, and joined Toyota Team TOM'S in the number 36 car. His new teammate was 2002 champion
Juichi Wakisaka, who transferred from Toyota Team LeMans. • In exchange for Wakisaka,
Tatsuya Kataoka transferred from the defunct number 37 TOM'S team to join Toyota Team LeMans, alongside 2002 co-champion
Akira Iida. •
Takeshi Tsuchiya joined his father's team, Toyota Team Tsuchiya, after transferring from TOM'S. •
Katsuyuki Hiranaka was promoted to GT500 with
Toyota Team SARD, joining
André Couto. ==Schedule==