Every Cadillac was a luxury car; this model featured curved side windows, remote-controlled exterior mirrors, variable ratio steering, and heated seats. The majority of the Cadillac line was completely redesigned and restyled for 1965. The lone exception was the Fleetwood 75 Sedan series, which would not gain full benefit of this year's redesign until 1966.
As for the other models, styling was updated in line with other GM cars. The lines were more flowing and graceful, and the cars were physically longer and lower than in previous years. This appearance was enhanced by vertical headlights up front and vertical taillights mounted in chrome-encased, dwindling tailfins. Inside the new cars, upholstery materials were given upgrades, and the Cadillac was once again the styling leader in its class. Ride comfort and handling were also greatly improved, thanks to careful engineering attention to the chassis and suspension components.
The new for 1964 Turbo Hydra-matic transmission was available in the new Calais line, but still not in the Fleetwood 75 line. The Calais, essentially a rebadged Series 62, was introduced in hopes of giving new life to the entry-level Cadillac, but despite repeated efforts, it never really took off. In retrospect, it seems Cadillac was a little slow on the learning curve, as the Calais lingered until 1976.