Stellantis to end car production in Poissy factory

“Poissy, a symbol of the decline of the French car industry,” “The slow decline of French automobiles”: newspapers in Paris are today opening their front pages with Stellantis’ decision to stop car production from 2028 at the historic Poissy factory, definitively turning a page in the industrial history of the Paris region.

The Poissy plant was the last car assembly factory in the Île-de-France region, and one of Stellantis’ five car-producing plants across France, CE Report quotes ANSA.

It is also one of the country’s 11 car factories overall.

The Italian-French-American group will therefore keep 4 car-producing plants in France out of a total of 42 worldwide: those in Mulhouse and Sochaux in the east, Rennes in the west, and Hordain in the north (for commercial vehicles).

In 2025, total production was about 662,000 vehicles, 13.5% of which came from the Poissy plant, a site opened in 1938 and now closing due to a crisis affecting major car factories in and around Paris, forcing shutdowns: the Renault plant in Boulogne-Billancourt closed in 1992, followed by the PSA plant in Aulnay-sous-Bois in 2014.

Two years ago, the Renault plant in Flins, 15 km from Poissy, also shut down.

After 2028 and by 2030, the closing Stellantis site is expected to be converted into a component manufacturing facility. At its peak in 1976, the Poissy plant employed 27,000 workers.

For the transition, Stellantis—having guaranteed that job cuts will occur through voluntary departures or retirements—will invest €100 million.

“The site will not close; it will always have an industrial future,” the company stated.

Currently, 1,925 workers are officially employed at the site, but only 1,580 are effectively present, considering absences due to training, illness, and other reasons. By 2030, about 1,200 workers are expected to remain active.