1963 A.T.S. 2500 GTS 3 Litre Alemano Coupe. Photo from NY Times
This 1963 limited production coupe I think has lots of Boxster cues. The sloping hood, The slightly raised fenders. Check out the vents in front of the rear wheels. Very Boxster. Even the large middle vent in front.
As they say, there are no new ideas.