Yes, you're right!
They were simply Fiat 1500 Fissores shipped out to Argentina, where Piero Dusio was intending to revive his Cisitalia name. They were re-badged as Cisitalia DF85 and it's believed betwen 15 and 30 were delivered.
This one has been completely rebuilt and was auction at Bonhams, and here's a front view of it: