[2] To have his namesake cars homologated as a manufacturer for Le Mans, Cunningham needed to build 25 examples of the C-3.

[5][7][8][9] The factory considered chassis 5026 the official prototype, and subsequent cars received the Michelotti body style.

[7] The New York Museum of Modern Art named the C-3 Continental Coupé one of the "10 Best Contemporary Automobiles".

In 1955 during a disbursement of parts by Hilltop Trailer Sales, Chassis #5235 was purchased by Jack Shakespeare of Indiana.

[15][16] The engine in the C-3 is the 331 cu in (5,424 cc) Chrysler FirePower V8 that Cunningham had first used in the C-2Rs, but now with a new intake manifold and four Zenith single-barrel carburetors, and a dual exhaust system.