This article is from the Chrysler-Plymouth-Dodge FAQ, by Dr. David Zatz with numerous contributions by others.
Chrysler owned Simca and Rootes/Sunbeam until the late 70s, but
sales kept going up and down (usually down). Peugeot bought them
and sold the Omni as the Talbot. They had Simca/Sunbeam engines
(Lloyd Parker). The Centura sold in Australia was a Simca (Dan Stern).
For more Simca info write to US.SIMCA.CarClub@centuryinter.net
See http://www.allpar.com/world/ for many details.