 The Rootes models were gradually phased out during the 1970s; with the production of the Hillman Hunter and Avenger models being moved to the Linwood plant in Scotland, and Ryton began manufacturing the Simca-based Chrysler Alpine in 1976, and the Horizon from 1981; both of these models had initially been produced in France only.Ryton from that point onward, effectively became a shadow plant to the Simca factory at Poissy in France, which broadly produced exactly the same models.Chrysler itself entered financial difficulties, and in 1978 sold the plant, along with the rest of its European operations for a symbolic US$1.00 to PSA Peugeot Citroën.