Chrysler Corporation and Ford Motor Company 1940 models featured fastback designs on sedans. General Motors introduced especially sleek fastback bodies for 1941, but hedged its bet by retaining some mild bustle-back designs as well.
But by the time new post-World War 2 designs were planned, fastback styling was falling out of favor. One likely reason was because bustle-back designs offered more trunk space, making them more practical.
Nearly all redesigned 1949 Chrysler Corporation cars had rectangular, bustle-back styling. But there were two exceptions: entry-level Plymouth and Dodge 2-door sedans were fastbacks.
The Plymouth fastback is featured below. All the photos are of cars listed for sale.