Automobiles Gonfaronnaises Sportives (also known as AGS and Gonfaron Sports Cars) was a small French racecar constructor that competed in various racing categories over a period of thirty years, including Formula One from 1986 to 1991.

The car was designed by Julien's former apprentice, the Belgian mechanic Christian Vanderpleyn, who had been with the garage (and the racing team) since the very late 1950s and who would stay on until 1988.

Soon, AGS went progressed and manufactured its own Formula 3 cars, which were ambitious but not good enough to compete seriously with the state-of-art Martinis which dominated the series at the time.

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).

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.

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.

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.

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.

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.