I think it was an option on the treps, but I am not 100% sure. Down here at one of the yards that I use to visit (Have not been to one in over 5 months) had an intrepid (1st gen) with the leather seat just like what you have posted.
That is an LH bench seat for the column shift cars. The Intrepids never had leather ones IIRC. but the Concorde did. The New Yorker also had a bench seat option in fack those look like the new yorker seat pattern. here is the cloth version i just removed from my car