Unic was a French manufacturer founded in 1905, and active as an automobile producer until July 1938. After this the company continued to produce commercial vehicles, retaining its independence for a further fourteen years before being purchased in 1952 by Henri Pigozzi, who was keen to develop Unic as a commercial vehicle arm of the then flourishing Simca business.

Simca was a French automaker, founded in November 1934 by Fiat S.p.A. and directed from July 1935 to May 1963 by Italian Henri Pigozzi. Simca was affiliated with Fiat and, after Simca bought Ford's French subsidiary, became increasingly controlled by Chrysler. In 1970, Simca became a brand of Chrysler's European business, ending its period as an independent company. Simca disappeared in 1978, when Chrysler divested its European operations to another French automaker, PSA Peugeot Citroën. PSA replaced the Simca brand with Talbot after a short period when some models were badged as Simca-Talbots.