Know what it is?
No, but you've got me really curious...
The badge on the nose looks like a late 60's Fiat badge, but the fender shape says Pininfarina Peugeot 504, but the center of the grille looks Michelotti to me.
I'm going to just make a stab at it and say that this was Pininfarina's entry for the Fiat Dino Coupe competition that Bertone ultimately won.
No, Umm, on second thought, the bumpers say Peugeot, so I'll say it's a Michelotti Peugeot 504 concept from the late 1960's that Peugeot put a Fiat badge on to hide it's true identity...
No, wait! - It's Pininfarina's submission for a redux of the Facellia III ?