Complex sentence: The Simca Vedette was a large car manufactured from 1954 to 1961 by the French automaker Simca in the factory in Poissy, which they acquired from Ford France, along with the model line.
Split into simpler sentences: The Simca Vedette was a large car, manufactured from 1954 to 1961 by the French automaker Simca, in the factory in Poissy. Simca acquired the Poissy factory from Ford France, along with the model line.