This is the 1953 Motorama Show Car, Pontiac Parisienne. It features an open front landau style roof.
The Parisienne was created to market test a romantic concept. Built like the old town cars of the 1930s and featured front seats the moved back a foot to allow for easy entrance. With a black exterior and a pink interior it still is a very striking model. This car was ordered destroyed in the late fifties. It was discovered during the 1980's in a New Jersey junkyard and restored.
Source: Internet