The chair-high seats and hat capabilities played into the upscale Chrysler customer demographics of the times, but also resulted in very conservative styling, compared to the flashier Buicks. But the same design orientations were also on Plymouths, too. The seats even had little armrests at their ends, not unlike church pers, f/r, iirc.
Can't forget the 8-passenger DeSoto factory limos, too. Or the fact that Plymouth was known for their taxi cabs, back then. ALL vehicles on which the higher rooflines and easier entry would make a big difference for the customers using them. Things which were pretty "right for the times", but times were getting ready to change. When the FL cars happened in '55, those winds of change really howled through! Hats tended to get a little less ornate and tall, too, it seemed. Changing styles?
CBODY67