The 1955 Mercury D528 Concept, crafted by Ford Mercury during 1953-55, stands as a pioneering rolling laboratory. Driven by a Prototype Y block motor XY-3 and encased in a fully cast fiberglass body, this concept boasted groundbreaking elements, including the first opening rear electric window. Its original colors and interior design remain intact after restoration, preserving its authentic essence. Used in various movies, notably by Jerry Lewis, the D-528 also served as a trick car. Beyond its cinematic flair, this vehicle was a testing ground for innovative seating, lighting, air conditioning, and front frame design. Its cleverly hinged rear fender bulges concealed a spare tire and gas tank, optimizing luggage space without compromising its advanced features. While equipped with a pillarless windshield and Ford's inaugural reverse-sloping retractable rear window, this research vehicle was never publicly showcased. Its screen name "Beldone" in the 1964 movie "The Patsy" was chosen by Paramount Pictures.
Source: Barrett-Jackson, Petersen Automotive Museum
Images: www.petersen.org; www.autoweteran.gower.pl
