The de Ville graduates to its own series (1959-1960)
The 1959 Cadillac is remembered for its huge sharp tailfins with dual bullet tail lights, two distinctive rooflines and roof pillar configurations, new jewel-like grille patterns and matching deck lid beauty panels. In 1959 the Series 62 were moved from the Series 62 to their own series, the Series 6200. De Villes and 2-door Eldorados became the Series 6300 and Series 6400 respectively, though they all, including the 4-door Eldorado Brougham (which was moved from the Series 70 to Series 6900), shared the same 130 in (3,302 mm) wheelbase. Engine output was an even 325 hp (242 kW) from the 390 cu in (6.4 L) engine. The De Ville Series had script nameplates on the rear fenders. Standard equipment included power brakes, power steering, automatic transmission, back-up lamps, windshield wipers, two-speed wipers, wheel discs, outside rearview mirror, vanity mirror, oil filter, power windows and two way power seats. Plain fender skirts covered the rear wheels and 4-doors were available in either four-window or six-window hardtop configurations. Over 53,000 De Villes were sold in their first year as a separate series, accounting for roughly 37% of all Cadillacs sold.
The 1960 Cadillacs had smoother, more restrained styling. General changes included a full-width grille, the elimination of pointed front bumper guards, increased restraint in the application of chrome trim, lower tailfins with oval shaped nacelles and front fender mounted directional indicator lamps. De Villes were distinguished by special script nameplates on the rear fenders. Four-window and six-window hardtop sedans were offered again. The former featured a one-piece wraparound backlight and flat-top roof, while the latter had a sloping rear window and roofline. Standard equipment included power brakes, power steering, automatic transmission, dual back-up lamps, windshield wipers, two-speed wipers, wheel discs, outside rearview mirror, vanity mirror, oil filter, power windows and a two-way power seats. Technical highlights were finned rear drums and an X-frame construction. Interiors were done in Chadwick cloth or optional Cambray cloth and leather combinations.