In period TV commercials, the cars were all introduced as "the new Plymouth" then followed by the model year, and made no mention of the nameplate, which was used to describe the trim package, standard and optional features that were included.

Keller's notion that cars be practical and allow drivers to sit upright while wearing a hat; it was sold at a time when competitors favored the low and sleek look.

Differences between the 1950 Special Deluxe and the 1951 Plymouth Cranbrook are relatively few in number and scope, with interchangeable glass and doors, but different rubber seals; lack of woodgrain on the instrument panel; plastic brake handle instead of chrome; and other similar changes.

The three-window coupe and fastback sedan were dropped for 1953; the former long and short wheelbase models were consolidated with a common wheelbase of 114 inches (2,900 mm), only one inch shorter than those of Chevrolet and Ford (although considerably less overhang than those competitors gave the Cranbrook a "shorter" look.)

[1] In 1954 assembly of the P-25 series commenced, with Plymouth Cambridge, Cranbrook, Savoy and Belvedere names used.

From 1956 a coupe utility variant was offered in addition to the four door sedan and was available in Cranbrook, Savoy and Belvedere models.

[15] The closely related Australian produced Chrysler Royal was built as the replacement for the local market.