The Stellantis plant in Poissy will cease vehicle assembly in 2028
- The Stellantis group has announced that it will end car assembly operations at its Poissy plant (Yvelines) in 2028, coinciding with the cessation of production of the DS 3 and Opel Mokka, which are currently produced there. The Poissy assembly plant was the last remaining one operating in the Paris region, following the closure of the plants in Boulogne-Billancourt (Renault), Quai de Javel (Citroën), Levallois (Citroën), Aulnay-sous-Bois (Citroën), and Flins (Renault).
- The Poissy factory was built in 1938-1939 by the American carmaker Ford , but the war of 1939-1945 prevented this factory from starting its assembly activity which began in 1946. The Ford Vedette launched at the end of 1948 was produced in this factory.
- The Poissy factory was sold to SIMCA in 1954, which expanded it to produce the Aronde. SIMCA came under the control of the American company Chrysler (then the world's third-largest automaker) in 1958. The Poissy factory was expanded again to accommodate the entire SIMCA range. It could produce up to 500,000 vehicles per year in the early 1970s.
- Having come under PSA's control in 1978, the Poissy plant ceased production of SIMCA and then Talbot (successors to SIMCA) to produce Peugeot and Citroën vehicles. Production volume declined sharply in the 2000s, reaching 329,000 units in 2005, then 197,000 units in 2010, and only 80,000 in 2025.
- The last assembly plant located in the Paris region will therefore cease all assembly activity in 2028, this closure being part of Stellantis' plan to significantly reduce its production capacity in Europe. The Poissy plant had been producing an estimated 150,000 vehicles per year since 2017.