Page 63...
August, 2015 Mopar Collector's Guide...
'Jim's '63 was built new at Chrysler's Windsor, Ontario plant, and true to its Canadian roots, the car was born with a very strange mixture of Dodge and Plymouth parts combined. While looking like every other Plymouth in most aspects, the dash, instrument panel, and interior are that of a Dodge B-body, not a Plymouth, and that's the way the car was built new.
Exactly! Nothing strange here, built for the Canadian market.. true to its Canadian roots.
I've tried to explain, but since I can't produce a person from the Winsor plant, this is my opinion. Good enough