The DeSoto Diplomat is an automobile produced by DeSoto from 1946 to 1962 for sale in export markets other than the United States and Canada. The export DeSoto based on the Plymouth was first introduced in 1937 and was built in Detroit. Chrysler Corporation of Canada, which before 1947 enjoyed "Imperial Preference" (reduced tariff barriers in British empire markets) and did not start building export DeSotos until late in the 1939 model year. 16 years after DeSoto ended production, Chrysler would revive the Diplomat name for an M-body Dodge. * * 1954 DeSoto Diplomat 4-Door Sedan * * * * *