The New Yorker in 1956 was upgraded have a more defined grilles and distinguished bumpers which differentiated the car from a Windsor. The Hemi engine got increased to 354 ci, adding power to more than 10% making it compete among horsepower competitions. It included eight chromed marks at the rear fender were installed then which later became a New Yorker hallmark. The major changes were done in 1957 when Chrysler added the Torque Flite three speed which operated automatically and torsion bar front suspension on which was way ahead of the company’s competitors internationally. The three speed was used for many years by Chrysler as well as European luxury cars.
The first design of Hemi V8 was outdated and they came up with its biggest size of 392 cubic inches and 6.4 liters, that increased its power helping the 300C car win at Daytona. Other highlights were a compounded curved-like windshield and a unique air conditioner. In 1958, there was an addition of dual headlights on all Chrysler cars, they tried to solve problems experienced in 1957 such as rusting, rattles and shaking mirrors. In 1959, the Hemi engine was replaced with a B-series engine with 413 cubic inches, the size, heavy weight and high cost of the Hemi was unjustified. The back-up lights were made standard, dashboard and instrument panel remained unchanged. The rearview mirror was electronically controlled that would automatically adjust to a dim or non-glaring when headlights beam came across it.