Instead of putting Lincoln sheet metal onto a Ford or Mercury wagon, in this case it seems the builder took an actual '79 Lincoln Continental sedan(or is it "Town Car'? I get confused.) and stuck a mid 70's Ford/Mercury wagon roof and back end onto it.
We had some of those 70s Lincolns... that year it was called the Continental Town Car. I have seen those Lincoln wagon photos before... years ago I am pretty sure. Yeah in this case they put a Ford/Mercury wagon top on a Town Car.