“Luxury that Moves with you.” This bit of generic American marketing-speak announced an exclusive multinational luxury grand touring car, the Ghia L 6.4.

Officially a product of Dual Motors, the Ghia-badged L 6.4 followed-up the beautiful but flawed Dual-Ghia, with roots back to the long and fruitful relationship between Chrysler’s flamboyant design boss, Virgil Exner, and Ghia’s ambitious leader, Luigi Segre.

Like the Dual-Ghia, the L 6.4 set its sights on Rolls-Royce, Bentley, Mercedes-Benz, and Cadillac at the pinnacle of the luxury car market.

Boasting muscular Chrysler power in a striking Italian suit, the L 6.4 was another nuanced Ghia interpretation of an Exner design.

The L 6.4 conveyed Exner’s exuberant sense of mid-century glamor but with restrained sophistication courtesy of the Italian carrozzeria .

The running gear was all Mopar, in the form of the 383-cubic-inch “Wedge” V-8 engine, mated to a robust TorqueFlite automatic transmission.

With 335 horsepower on tap, the...