I think it’s a Bizzarrini Europa, commonly referred to (but not officially known as) Bizzarrini GT Europa.
It was first shown at the Turin Show in 1966 with a 1.5 litre Fiat engine, although it was engineered to take the 1.9l Opel engine with which most of them were fitted (12 of the 17 made were so fitted with the other 5 having Fiat engines).
It was designed by Pietro Vanni, who re-worked and shrank Giugiaro’s Bizzarrini Strada; it’s a brave man who tinkers with a Giugiaro design, but it’s generally regarded as being reasonably successful. It was said to be a great car and it’s sad it was never commercially successful, largely because GM didn’t take it up as hoped but went their own way and made the Opel GT instead.