This original 15-page Dual-Ghia Consolidated Specification Data document, dated December 15, 1956, was prepared for the 1957 model year by or for Dual-Motors Corporation of Detroit, Michigan.

It provides detailed factory-era specifications for the Dual-Ghia 240 and 500, including engine performance, transmission, electrical systems, brakes, steering, suspension, and chassis construction. The final two pages feature technical drawings illustrating the automobile’s exterior and interior dimensions.

Historical Significance: This rare technical document serves as a valuable primary-source reference for Dual-Ghia historians, collectors, and restorers, preserving the automobile’s original engineering specifications.