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The 1993 All Japan Grand Touring Car Championship was the inaugural season of the Japan Automobile Federation All-Japan Grand Touring Car Championship and the successor series to the All Japan Sports Prototype Championship as international prototypes were in a state of flux in the early 1990s, and sportscar racing globally had switched from prototypes to grand tourers. It was marked as well as the eleventh season of a JAF-sanctioned sports car racing championship dating back to the All Japan Sports Prototype Championship.^[1]

Most events were staged as joint-races with the upstart Japan Super Sports Sedan Championship, and the IMSA GT Championship, with only a small handful of cars entered in the "GTS" category that would later evolve into the current GT500 class - and in fact, only one such car took part in that year's Suzuka 1000km against several Group C prototypes and sports cars from the N1 Endurance Series. Because the format and structure of the races were so different from what would come in future seasons, the 1993 season is not recognized by the GT Association (GTA), who were incorporated in 1994 to promote the All-Japan GT Championship (later to become Super GT).

The championship was contested over four rounds,^[2] and Masahiko Kageyama was declared the champion, driving a Nissan Skyline GT-R.^[3] He would also win the final All-Japan Touring Car Championship to be run to Group A regulations in the same year.

Drivers and teams

GT1

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
NISMO^{[N 1]}	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	2	Masahiko Kageyama	B	1–2, 4
Joe Llauget	Oldsmobile	Oldsmobile Cutlass IMSA GTO	Oldsmobile 6.0 L V8	12	Joe Llauget	G	1
Lindley Racing^{[N 2]}	Ford	Ford Mustang IMSA GTO	Ford 6.0 L V8	48	Les Lindley	G	1
Tommy Riggins	Oldsmobile	Oldsmobile Cutlass IMSA GTO	Oldsmobile 6.0 L V8	53	Tommy Riggins	G	1

GT2

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
NISMO	Nissan	Nissan Silvia	Nissan FJ20DET 2.0 L Turbo I4	3	Takayuki Kinoshita	Y	1–2
NISMO	Nissan	Nissan Silvia	Nissan FJ20DET 2.0 L Turbo I4	3	Hideo Fukuyama	Y	4
Auberlen Racing Concepts^{[N 3]}	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	19	Bill Auberlen	Y	1
Jack Lewis Enterprises	Porsche	Porsche 964 RS	Porsche M64/03 3.8 L F6	73	Jack Lewis	Y	1
Leitzinger Racing	Nissan	Nissan Silvia	Nissan VQ30DE 3.0 L V6	95	Bob Leitzinger	T	1
Leitzinger Racing	Nissan	Nissan Silvia	Nissan VQ30DE 3.0 L V6	97	Frank Honsowetz	T	1

JSS

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
RS Nakaharu	Nissan	Nissan Silvia	Nissan FJ20DET 2.0 L Turbo I6	5	Hiroyasu Aoyagi	B	1–2, 4
				24	Seiichi Sodeyama		1–2, 4
				25	Minoru Saotome		2
RE Amemiya Racing	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	6	Katsuo Kobayashi	D	1
RE Amemiya Racing	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	10	Tadashi Mizuno	D	1–2, 4
ERC	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	9	Tetsuya Kawasaki	D	1
				11	Takemasa Okazaki		1–2
				12	Tetsuya Kawasaki		4
Hiromoto Ishimori	Nissan	Nissan Skyline GTS-R	Nissan RB20DET 2.0 L Turbo I6	13	Hiromoto Ishimori	B	1–2, 4
Katsumi Mochizuki	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	17	Katsumi Mochizuki	D	1–2
Kenji Tohira	Nissan	Nissan Skyline GTS-R	Nissan RB20DET 2.0 L Turbo I6	22	Kenji Tohira	B	1–2
Atsushi Hayakawa	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	33	Atsushi Hayakawa	D	1–2
Tetsuo Kozai	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	37	Tetsuo Kozai	D	1–2, 4
Shunichi Mori	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	39	Shunichi Mori	D	1–2, 4
Katsutoshi Ito	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	40	Katsutoshi Ito	D	1, 4
Toshiro Fukazawa	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	55	Toshiro Fukazawa	D	1–2, 4
Yoshimi Ishibashi	Nissan	Nissan Skyline GTS-R	Nissan RB20DET 2.0 L Turbo I6	70	Yoshimi Ishibashi	Y	1–2, 4

C1

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Le Mans Company	Nissan	Nissan R92CP	Nissan VRH35Z 3.5 L Twin Turbo V8	25	Takao Wada	B	3
Le Mans Company	Nissan	Nissan R92CP	Nissan VRH35Z 3.5 L Twin Turbo V8	25	Toshio Suzuki	B	3
Nova Engineering	Nissan	Nissan R90CK	Nissan VRH35Z 3.5 L Twin Turbo V8	27	Mauro Martini	B	3
Nova Engineering	Nissan	Nissan R90CK	Nissan VRH35Z 3.5 L Twin Turbo V8	27	Heinz-Harald Frentzen	B	3

GT-N3

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
NISMO^{[N 4]}	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	2	Masahiko Kageyama	B	3
NISMO^{[N 4]}	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	2	Jeff Krosnoff	B	3

GTS

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Competition Motorsport South	Chevrolet	Chevrolet Camaro	Chevrolet 6.0 L V8	11	Kenny Bupp Jr.	G	3
					Robert Peters		3
					Luis Sereix		3
Lindley Racing^{[N 5]}	Ford	Ford Mustang IMSA GTO	Ford 6.0 L V8	48	Les Lindley	G	3
Lindley Racing^{[N 5]}	Ford	Ford Mustang IMSA GTO	Ford 6.0 L V8	48	Bob Sobey	G	3

GTU

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Dibós Racing Team Peru	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	84	Eduardo Dibós	Y	3
					Juan Dibós		3

Lights

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Comptech Acura Spice Racing	Spice	Spice SE91P	Acura 3.0 L V6	49	Parker Johnstone	G	3
Comptech Acura Spice Racing	Spice	Spice SE91P	Acura 3.0 L V6	49	Dan Marvin	G	3

LM GT4

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Roock Racing	Porsche	Porsche 964 RSR	Porsche M64/03 3.8 L F6	37	Dieter Köll	P	3
					Philippe Albera		3
					Akihiko Nakaya		3
Chamberlain Engineering	Lotus	Lotus Esprit Sport 200	Lotus 912 2.2 L I4	44	Gordon Kellett	P	3
					Hideshi Matsuda		3
					Tomiko Yoshikawa		3
				45	Yojiro Terada		3
					Tetsuya Ota		3
					Tom Langeberg		3
Larbre Compétition	Porsche	Porsche 964 RSR	Porsche M64/03 3.8 L F6	47	Dominique Dupuy	Y	3
					Jesús Pareja		3
					Jack Laconte		3
HEICO Motorsport	Porsche	Porsche 964 RSR	Porsche M64/03 3.8 L F6	65	Jürgen Barth	Y	3
					Dirk Ebeling		3
					Karl-Heinz Wlazik		3

N1-1

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Motor Sport Division	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	1	Masami Miyoshi	D	3
Motor Sport Division	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	1	Motoji Sekine	D	3
Beldear Corporation	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	7	Hideo Fukuyama	T	3
Beldear Corporation	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	7	Kumi Sato	T	3
Revolver	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	8	Yoshinori Hasegawa	Y	3
Revolver	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	8	Motonobu Sakamoto	Y	3
Knight Sport	Mazda	Mazda RX-7	Mazda RE13B 1.3 L 2-rotor	9	Fuminori Mizuno	Y	3
					Yasuo Kusakabe		3
					Yasufumi Yamazaki		3
Susuki Racing Mechanics	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	15	Katsuhiko Okamoto	Y	3
Susuki Racing Mechanics	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	15	Shinya Motoyoshi	Y	3
Team Actor	Nissan	Nissan Skyline GT-R	Nissan RB26DETT 2.6 L Twin Turbo I6	16	Junya Oshima	T	3
					Akihiko Koto		3
					Yoichi Fukudome		3

N1-2

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Nakajima Planning	Honda	Honda Prelude	Honda H22A 2.2 L I4	6	Koji Sato	B	3
Nakajima Planning	Honda	Honda Prelude	Honda H22A 2.2 L I4	6	Hidetoshi Mitsusada	B	3
Gazas	Honda	Honda Prelude	Honda H22A 2.2 L I4	21	Kazuo Shimizu	T	3
					Masami Kageyama		3
					Takahiko Hara		3
Formula Spirit	Honda	Honda Prelude	Honda H22A 2.2 L I4	26	Daniel Latour	T	3
					Takeshi Tsuchiya		3
					Tatsuya Tanigawa		3

N1-3

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Team A-One	Honda	Honda Civic SiR	Honda B16A2 1.6 L I4	6	Ryo Michigami	T	3
					Atsushi Okuda		3
					Yoshihisa Fujita		3

RS

Team	Make	Car	Engine	No.	Drivers	Tyre	Rounds
Cosmos Racing	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	5	Masaki Ohashi	D	3
					Katsunori Yamamoto		3
					Yoshifumi Yamazaki		3
				73	Yoichiro Suzuki		3
					Akio Tomita		3
					Naoto Chikada		3
Trident	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	10	Koichi Hamada	D	3
					Minetaka Mizuno		3
					Tadayuki Sato		3
Car Graphic Racing Team	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	17	Masayoshi Furuya	D	3
					Masahiro Tejima		3
					Hisashi Tukahara		3
Mascrat Racing Team	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	23	Tsuguo Yagyu	Y	3
					Mari Nagata		3
					Katsuto Kinugasa		3
Mitsuo Yamamoto	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	51	Mitsuo Yamamoto	D	3
Mitsuo Yamamoto	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	51	Genji Hashimoto	D	3
Jikanwari	West	West 89S	Mazda RE13B 1.3 L 2-rotor	52	Tomohiro Tomasu	D	3
Jikanwari	West	West 89S	Mazda RE13B 1.3 L 2-rotor	52	Michiko Hashimoto	D	3
IZUMODEN	Oscar	Oscar SK90	Mazda RE13B 1.3 L 2-rotor	55	Yoshiyuki Ogura	Y	3
					Keiichi Mizutani		3
					Hajime Oshiro		3

Schedule

Round	Race	Circuit	Date
1	IMSA GT Fuji	Fuji Speedway	March 28
2	Fuji 100 km	Fuji Speedway	May 30
3	Suzuka 1000 km	Suzuka Circuit	August 29
4	Fuji F3000	Fuji Speedway	October 17

Race results

Round	Circuit	Date	Pole Position	Winner
1	Fuji Speedway	March 28	#2 NISMO	#2 NISMO
1	Fuji Speedway	March 28	Masahiko Kageyama	Masahiko Kageyama
2	Fuji Speedway	May 30	#2 NISMO	#2 NISMO
2	Fuji Speedway	May 30	Masahiko Kageyama	Masahiko Kageyama
3	Suzuka Circuit	August 29	#27 Nova Engineering	#25 Le Mans Company
3	Suzuka Circuit	August 29	Mauro Martini Heinz-Harald Frentzen	Takao Wada Toshio Suzuki
4	Fuji Speedway	October 17	#2 NISMO	#2 NISMO
4	Fuji Speedway	October 17	Masahiko Kageyama	Masahiko Kageyama

Notes

^ Competed in GT-N3 class in round 3
^ Competed in GTS class in round 3
^ Entered into round 3 in GTU class with Auberlen and John Morton but did not arrive
^ Competed in GT1 class in all other rounds
^ Competed in GT1 class in round 1

References

^ "History of JGTC and Super GT Racing". imca-slotracing.com. 19 October 2007. Archived from the original on 8 February 2010. Retrieved 6 March 2010.
^ "JGTC 1993". wspr-racing.com. 10 April 2003. Retrieved 6 March 2010.
^ "JGTC – final positions and tables". classicscars.com. 10 April 2003. Retrieved 6 March 2010.

[4] Competed in GT-N3 class in round 3

[5] Competed in GTS class in round 3

[6] Entered into round 3 in GTU class with Auberlen and John Morton but did not arrive

[7] Competed in GT1 class in all other rounds

[8] Competed in GT1 class in round 1

[1] "History of JGTC and Super GT Racing". imca-slotracing.com. 19 October 2007. Archived from the original on 8 February 2010. Retrieved 6 March 2010.

[2] "JGTC 1993". wspr-racing.com. 10 April 2003. Retrieved 6 March 2010.

[3] "JGTC – final positions and tables". classicscars.com. 10 April 2003. Retrieved 6 March 2010.

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