rear of the car. Engine displacement was enlarged to , and the venerable Hydra-Matic transmission, first introduced in the 1940 model year, was replaced with the new Turbo-Hydromatic automatic transmission. The cost was back up to the 1962 price of $6,366, and sales were up to 14,500 units. 1965–1970 1965 featured all-new styling on a longer wheelbase, on a stretched GM C-body platform. The Sixty Special was now back to being a pillared sedan (the B-pillar had been absent since 1957). Also new for 1965 was the available "Brougham" option package, adding $194 to Sixty Special's base price of $6,479, which included padded grained-vinyl roof covering with "Brougham" badging on the C-pillar. 18,100 Sixty Specials were built for 1965. With Eldorado having joined the Sixty Special in 1963 as the only other non-limousine Cadillac bodied by Fleetwood, the addition of the Brougham script made things a little more consistent in nomenclature, for the Eldorado was originally only available as a convertible, and its later four-door sedan companion was denoted "Brougham". Also, Cadillac got rid of the X-frame and replaced it with a full-perimeter frame. Standard equipment now included a warning lamp in the instrument cluster indicating an unlatched trunk lid. Rear seat belts were also standard. With minor trim changes, in 1966 Cadillac offered buyers two models in this series: the standard Fleetwood Sixty Special (priced at $6,378) and the new Fleetwood Brougham ($6,695). The Brougham option package proved so popular the previous year it was made a separate model for 1966. The Fleetwood Brougham included a formal-looking vinyl roof covering, and luxurious appointments inside such as genuine walnut trim and, for rear seat passengers, lighted writing tables (through 1967), foot rests, and reading lamps. This was the last year that the Sixty Special would serve as a body-sharing companion to the Eldorado convertible, as the 1967 Eldorado moved to front-wheel drive and all-new sheet metal. The new Sixty Special Brougham sold over 13,630 copies, surpassing the standard Sixty Special which sold only 5,445. Cadillacs had all-new styling in 1967, but the Sixty-Special continued with an exclusive wheelbase. The $6,739 Sixty Special Brougham continued to outsell the $6,423 Sixty Special - 12,750 units versus 3,550. AM/FM radio was a $188 option. 1968 featured mostly carry-over styling from 1967, but the hood was longer this year, as it extended all the way to the base of the windshield to cover the