In 1956, the customary facelift was introduced, the front and rear fenders of the car were cleaned up. The 1955 grille created space for the upside-down trapezoidal mouth, and the ‘Twin-Tower’ taillamps fitted reshaping the rear quarter panels; it was the model year of Power-Style Design. The door handles which were hard to operate in previous years were redesigned.
St. Regis was mechanically developed; the 331-cu inch Hemi V8 was replaced with 354 cu inch increasing half-point compression to 9:0:1 with 260 horsepower. The 6-volt electrical system was replaced with a 12-volt system. The automatic transmission used a push-button space-age system. The instrument panel had buttons indicating N for neutral, D for a drive, and R for reverse; it had no park so the car would stay neutral with the parking brake on at rest. The 1956 models had two-speed PowerFlite though half the year three-speed TorqueFlite was introduced.
Finding mechanical parts today for a 1956 St. Regis may be a problem but its body is intact and has a single repaint that you can maintain. The basic things to change would be whitewall; radial tires which improve its driveability. Today in the car collector market, St. Regis is rare and thus its value seems little.