years before many other makes, a 12-volt electrical system was adopted. A new body style for 1953 was the Skylark convertible. The Buick Roadmaster Skylark was one of three specialty convertibles produced in 1953 by General Motors, the other two being the Oldsmobile 98 Fiesta and the Cadillac Series 62 Eldorado. The Skylark featured open wheel wells, a drastically lowered beltline, a four-inch-chop from the standard Roadmaster's windshield, the absence of VentiPorts, and a new Sweepspear that anticipated Buick's 1954 styling. Kelsey-Hayes wire wheels and a solid boot cover were standard. At US$5,000 ($ in dollars ) only 1,690 units were produced. The following year, and for one year only, it would become its own series built on the all-new Century chassis. This was the last year for the Roadmaster Estate, and it was the last wood-bodied station wagon mass-produced in the United States. Its body was a product of Ionia Manufacturing that built all Buick station wagon bodies between 1946 and 1964. Priced at US$4,031 ($ in dollars ), the Estate was second in price only to the Skylark, with 670 being sold. Overall Roadmaster sales went up to 79,137. 1954–1956 In 1954 Buick Roadmaster and Super shared with Cadillac and Oldsmobile 98 the new General Motors C-body, adopting the new "ponton" appearance, and the addition of "Dagmar bumpers" to the front. These were large, roomy cars, as much as five and a half inches longer in wheelbase and more than nine inches (229 mm) longer overall than in 1953. Roadmaster script was placed on the rear quarter panels and within the rear deck ornament. Rear fenders had a blunted fin at the rear edge, with dual "bullet" taillamps below. A new panoramic windshield with vertical side pillars was used. Seats had chrome bands on 2-door models and rear seats had an armrest on 4-door models. The front suspension was refined and Roadmaster's horsepower was increased to 200, while the pillared coupe and the Estate wagon were no longer offered as body styles. Overall sales dropped to 50,571 (which was 11% of model year production). and the Roadmaster Convertible was listed at US$3,521 ($ in dollars ). Air conditioning was provided by Frigidaire optionally on sedans and hardtops, which consisted of a self-contained unit that was retrofitted at the customers' request. In 1955 broad lower rear fender bands, gold-colored Roadmaster deck script and hood ornament, bars on the hubcaps,