54 dodge coronet suburban how rare?

Looks like the dodge was a sheet metal and badge engineered Plymouth body with Dodge sheet metal up front and trim and upholstery from Dodge. Chrysler did a lot of sheet metal swapping for their exports. Wouldn't be a surprise to see the do the same for a low production domestic.

Plymouth DeSoto in S America, Mediterranean, Africa, Plodges in Canada. 54bodies sold as 56s in Australia. Lots of that went on in the 40s through late 50s.