The Cadillac Sixty Special name has been used by Cadillac to denote a special model since the 1938 Harley Earl-Bill Mitchell-designed Series 60 derivative. The Sixty Special name would soon be synonymous for some of Cadillac's most luxurious vehicles. This exclusivity was reflected in the introduction of the exclusive Sixty Special Fleetwood Brougham d'Elegance in 1973, and the Sixty Special Fleetwood Brougham Talisman in 1974.
Sixty Special arrived with revised trim and more power (250 hp (190 kW), to be exact) for 1955, and while the $4,342 price was lower than last year, production rose slightly to 18,300 units. The eight chrome louvers – mounted on the lower rear doors since 1950, were replaced by 12 louvers mounted just ahead of the bumper on the rear fenders. Chrome rocker panel moldings – taller than the ones used on Series 62s - stretched from the back of the rear wheel well to the rear bumper. A new grille held a bold eggcrate design, while the rear roof support fashioned a delicate Florentine curve – this design was also shared with the lower-rung Series 62. In back, six vertical chrome louvers were mounted on the panel below the trunk lid – three spaced on each side of the license plate mounting. The tinted band across the windshield header changed from green to gray this year. A new option, the remote control trunk release, debuted this year.
