Chrysler Corporation's first postwar concept was a Plymouth, at the time the corporation's low-priced division. The story goes that 1950 Plymouths were shipped off to Italy so that coachbuilding firms could build show cars from Chrysler styling staff designs. Pininfarina built its car as ordered, but it was never shown. Ghia, on the other hand, requested that it ignore the Chrysler design and build a Plymouth to its own design. Chrysler agreed, and the resulting Plymouth XX-500 was designed, constructed, shipped to the USA and displayed at automobile shows starting in 1951.
(Idle thought: the "XX" can be interpreted to mean "double-cross," referring to treason or making false promises. Why did Chrysler people approve it as part of the car's name?)
This is what Ghia had to start with.
Sorry, but this was the largest image of this photo that I could locate.
Thanks to its tall, boxy Plymouth heritage, Ghia did its best to make the XX-500 look sleek and Italian, but the result was nevertheless ponderous. About the best that could be said is that it was an improvement over the design of production Plymouths. Ghia was successful in that the high quality it delivered for around $10,000 1950 American dollars opened the door to building a number of Chrysler Corporation concept cars during the 1950s.