With a compression ratio of 10:1, it developed and of torque in 1X4-Bbl trim. Chrysler got a boost in sales in 1963 with the introduction of a five-year/50,000-mile warranty, a business practice that was unheard of by its competitors in the 1960s. The New Yorker used Chrysler's completely redesigned body with only the windshield showing traces of the previous Forward Look designs, although, under the skin, platform changes were near zero, with only a change from 12" Total Contact to Bendix 11" Duo-Servo brakes. A new, more luxurious Salon four-door hardtop was added at midyear as a trim package. Engine output was and the wheelbase was now . Changes for 1964 included a new grille, larger rear window and small tailfins giving the car a boxier look from the side. Canadians were given the choice of a new two-door hardtop, while Americans got the Salon option on the four-door hardtop and post. All Chryslers (as well as large Plymouth and Dodges) were now built on an all-new C-body unibody platform which featured a bolt-on, rubber-isolated front sub frame. Elwood Engel designed the 1965 New Yorker (and all Chrysler models) with styling cues from his 1961 Lincoln Continental — square side view with chrome trim along the top edges of the fenders. The styling began to share some visual similarities with the premium luxury sedan Imperial which received an all-new appearance in 1964. The standard engine was a Firepower V8, with single 4-barrel carburetion. As an option the buyer could order high-performance 413 from that year's Chrysler letter car, which came with an unsilenced air cleaner, dual breaker ignition, special camshaft and dual exhaust, and was rated at . In any case the engine was paired with the 3-speed "TorqueFlite" automatic transmission. 1965 was the last year for the 413, as it would be phased out for the new 440 the next model year. For 1965 the New Yorker was offered as a 4-door sedan, 2- and 4-door hardtop, and as Town & Country 2- or 3-seat station wagon. The 4-door sedan was a six-window body style touted Town Sedan, also available in the Newport line and in Dodge form as the Custom 880 4-door Sedan. A 4-door, four-window sedan body style was produced but not offered in New Yorker guise.