1976 Cadillac Eldorado Convertible for Sale. 500 cubic inch V8 engine, automatic transmission, A/C, power steering, front disc brakes, 15"Â steel wheels with radial tires, Firethorn Metallic exterior, accenting pin stripe, remote mirrors, power convertible top with upgraded canvas top, power windows, power locks, red split bench seat interior, hidden AM/FM/CD radio. This beautiful Classic Caddy is ready to make memories that will last a lifetime! Automotive History: The Cadillac Eldorado is a personal luxury car that was manufactured and marketed by Cadillac from 1952 to 2002 over ten generations. Competitors and similar vehicles included the Continental Mark series, Buick Riviera, Oldsmobile Toronado and Chrysler's Imperial Coupe. 1976 was to be the final year for the Eldorado convertible and the car was heavily promoted by General Motors as the last American convertible. Some 14,000 would be sold, many purchased as investments. Cadillac reintroduced the Eldorado convertible for the 1984 model year. Having received a major facelift the previous year, the 1976 Eldorado received only minor styling changes, including a new grille and revised taillamp lenses.