Lost Show & Concept Cars: 1956
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| The 1956 Eldorado Brougham prototype underwent several modifications. Presumably it was eventually scrapped. |
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| For 1956, four Cadillac "Mood Cars" were exhibited on auto show circuit. This one is the Castilian. The Starlight Silver car had an interior upholstered in black and white calfskin with silver nylon. Of the four show cars only the Maharani is known to still exist. |
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| The Gala was a pearlescent white Sedan de Ville with pearl-white leather, satin, and nylon interior; carpeting was white mouton. Armrests in the front doors housed small umbrellas with silver and rhinestone covered handles. |
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| The Western-themed Palomino was created from a Series 62 convertible and featured a metallic beige exterior along with a tan leather and calfskin hide interior. |
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| The 1956 Oldsmobile Golden Rocket has been rumored to still exist. |
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| Another 1956 concept car rumored to still exist is this car, the Pontiac Club de Mer. |
