(with trim similar to the 1965 Wildcat deluxe) and custom trims were again the sole options. The Wildcat's wheelbase was in comparison to the top level Electra at . The listed retail price for the Sport Coupe 2-door hardtop was $3,849 ($ in dollars ). The 401 cubic-inch Wildcat V8 remained the standard engine through 1966. From 1964 to 1966 a larger, 425 cubic-inch, Wildcat V8 was also available, producing either with a factory four-barrel carburetor or with two four-barrel carburetors ("dual quads"). This version also featured finned cast aluminum valve covers with the Buick logo embossed on the top. Also beginning in 1964, a three-speed manual transmission with column shift became standard equipment on all Wildcats, with either the four-speed manual (1963-1965 only) or three-speed automatic Super Turbine 400 transmissions as options. Engine names referred to engine torque output rather than displacement. The "Wildcat 445" was a 401 CID V8 that produced a peak torque rating of , while the "Wildcat 465" was a 425 CID V8 that produced of torque. The "dual quad" version of the Wildcat 465 was dubbed "Super Wildcat". Second generation (1965–1970) In 1966 a one-year-only Wildcat "Gran Sport Performance Group" package could be ordered by selecting the "A8/Y48" option. Two engine choices were available. The single carb 425 CID/340 hp V8 was included in the base package price with a dual-carb set-up available at extra cost. Initially, this upgrade remained a dealer-installed carb-intake modification bolted to stock MT-coded engines but eventually these "Super Wildcats" could also be obtained direct from the factory with MZ-coded engines. Rounding out both the base and Super GS packages were dual exhaust, heavy-duty suspension, posi-traction and updated rear quarter-panel "GS" badging in the new, initials-only format employed on all post-1965 Gran Sports. A total of 1,244 Wildcat GSs were built by Buick during the model year. Of those, 242 were convertibles and the rest were hardtops. A mere 22 (consisting of an unknown mix of both body styles) were Super Wildcats. A styling appearance cue was adopted from the popular 1963 Buick Riviera, where the beltline arched up over the rear wheels, a modification of an older styling element called the "Sweepspear," with later vehicles installing a rub strip along the entire side of the vehicle tapering down as it reached the rear bumper. The year 1967 brought a new engine to the Wildcat line (along with the Riviera