Beginnings

By late summer 1986, AGS entered the Italian Grand Prix in Monza, its very first Formula One race. Its structure was somewhat bizarre: The team had no more than 7 employees and was still operated from the Garage de l'Avenir in Gonfaron.

AGS appeared with a car that was once again penned by Vanderpleyn. The JH21C was a strange mixture between former AGS F3000 vehicles and Renault F1 parts which were used extensively. The car was powered by a well-used Motori Moderni turbo engine (the only time these Carlo Chiti-developed engines were given to a customer team) and driven by Italian Ivan Capelli.^[3] A few weeks before, the car had been tested at Paul Ricard by Didier Pironi, driving an F1 car for the first time since his leg-breaking accident in the 1982 German Grand Prix. Due to technical difficulties, neither in its first attempt nor in the following race in Portugal did Capelli see the finish.

For the team's first full F1 season in 1987, Vanderpleyn penned the JH22, which used a normally-aspirated Cosworth DFZ but was otherwise much the same as the JH21C.^[3] The car was initially driven by Pascal Fabre, who had driven for the team in Formula 2 in 1982. He proved to be a reliable driver, finishing eight of the first nine races, but was never in serious contention for scoring points and failed to qualify on three occasions. AGS improved in the last two races of the season when Fabre was replaced by the Brazilian Roberto Moreno (who saw his first chance in Formula One since 1982 when he had failed to qualify a Lotus works car). In Adelaide, Moreno scored the first championship point for AGS,^[3] which meant that the team finished the season equal on points with the better-financed Ligier and the returning March team.

Takeover

The AGS JH23 in a demonstration run at the 2018 Japanese Grand Prix.

In 1988, AGS started with a new car, the JH23,^[3] and Philippe Streiff as the team's only driver. Streiff drove quite powerfully and qualified well, but he saw the chequered flag only four times; in all the other events of that year technical failures or accidents were recorded. Financially, the year started well and ended with a disaster. AGS had a solid sponsor - the French Bouygues group - which promised to support not only the racing activity but also the completion of a new factory outside Gonfaron. After AGS had started work on the new facility, Bouygues withdrew from the team, leaving Julien without any support. To save the team, he eventually had to sell it to Cyril de Rouvre, a French entrepreneur with various ambitions.

Difficulties

Things went soon from bad to worse. The new team management changed frequently (Vanderpleyn for instance went to Coloni) and brought a lot of disorder. Worse was to come; Streiff was paralysed in a testing accident in Brazil before the 1989 season.^[4]

Streiff was replaced with Gabriele Tarquini,^[4] who surprised with some great performances in the first half of the season. He was very close to the points in both the 1989 Monaco Grand Prix and 1989 United States Grand Prix, but retired in both races. Then things went better in the 1989 Mexican Grand Prix, where he finished sixth and scored his first point. But after these highlights, the team was never able to be as competitive again.

In the second part of the 1989 season, the team had to prequalify - a task that was nearly never achieved by Gabriele Tarquini and Yannick Dalmas. AGS then finished 15th in the Constructors' Championship, equal with the Lolas used by the Larrousse team. During the summer months, there were strong rumours that AGS would soon use a new W12 engine developed by the French designer Guy Nègre. This strange MGN (Moteurs Guy Nègre) machine saw the light of day in late 1988 and was tested in an old AGS JH22 chassis in the summer of 1989.^[5] It was clear that AGS was not related to these tests; they were completely private attempts by Nègre. The engine never found its way to a Grand Prix but it was announced to be used in a 1990 Le Mans car called Norma M6. The car was presented and attempted to race, but failed to qualify over engine issues.

Finally, AGS had to use Cosworth engines again in 1990. That year brought no improvement at all, Dalmas's 9th in the 1990 Spanish Grand Prix was the best result and by the beginning of the 1991 season the team was obviously close to its end. The team lacked money – at the first two Grands Prix of 1991, in Brazil and Phoenix the team's mechanics had to pay for their own hotel rooms.^[6] In the race itself, Tarquini finished 8th, which was the last finish ever of an AGS car. De Rouvre sold his team to some Italian entrepreneurs, Patrizio Cantù and Gabriele Rafanelli. Both changed little except for the driver line-up (Stefan Johansson was replaced with newcomer Fabrizio Barbazza) and the colours of the car (which were now blue, red and yellow instead of white). A new car, the JH27, was raced in the early autumn, but by then the team was in rags again, so the Italians closed the doors after the 1991 Spanish Grand Prix.

Complete Formula One results

(key)

Year	Chassis	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	Points	WCC
1986	JH21C	Motori Moderni 615–90 1.5 V6 t	P		BRA	ESP	SMR	MON	BEL	CAN	DET	FRA	GBR	GER	HUN	AUT	ITA	POR	MEX	AUS	0	NC
				Ivan Capelli													Ret	Ret
1987	JH22	Ford Cosworth DFZ 3.5 V8	G		BRA	SMR	BEL	MON	DET	FRA	GBR	GER	HUN	AUT	ITA	POR	ESP	MEX	JPN	AUS	1	12th
				Pascal Fabre	12	13	10	13	12	9	9	Ret	13	NC	DNQ	DNQ	Ret	DNQ
				Roberto Moreno															Ret	6
1988	JH23	Ford Cosworth DFZ 3.5 V8	G		BRA	SMR	MON	MEX	CAN	DET	FRA	GBR	GER	HUN	BEL	ITA	POR	ESP	JPN	AUS	0	NC
				Philippe Streiff	Ret	10	Ret	12	Ret	Ret	Ret	Ret	Ret	Ret	10	Ret	9	Ret	8	11
1989	JH23B JH24	Ford Cosworth DFR 3.5 V8	G		BRA	SMR	MON	MEX	USA	CAN	FRA	GBR	GER	HUN	BEL	ITA	POR	ESP	JPN	AUS	1	15th
				Philippe Streiff	WD
				Gabriele Tarquini		8	Ret	6	7	Ret	Ret	DNQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ
				Joachim Winkelhock	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ
				Yannick Dalmas								DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ
1990	JH24 JH25	Ford Cosworth DFR 3.5 V8	G		USA	BRA	SMR	MON	CAN	MEX	FRA	GBR	GER	HUN	BEL	ITA	POR	ESP	JPN	AUS	0	NC
				Gabriele Tarquini	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNQ	Ret	DNPQ	13	DNQ	DNQ	DNQ	Ret	DNQ	Ret
				Yannick Dalmas	DNPQ	Ret	DNPQ	DNPQ	DNPQ	DNPQ	17	DNPQ	DNQ	DNQ	DNQ	NC	Ret	9	DNQ	DNQ
1991	JH25B JH27	Ford Cosworth DFR 3.5 V8	G		USA	BRA	SMR	MON	CAN	MEX	FRA	GBR	GER	HUN	BEL	ITA	POR	ESP	JPN	AUS	0	NC
				Gabriele Tarquini	8	Ret	DNQ	Ret	DNQ	DNQ	DNQ	DNQ	DNQ	DNPQ	DNPQ	DNPQ	DNQ
				Olivier Grouillard														DNPQ
				Stefan Johansson	DNQ	DNQ
				Fabrizio Barbazza			DNQ	DNQ	DNQ	DNQ	DNQ	DNQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ	DNPQ