Should this also be labeled as "Hispano-Alemán Vizcaya"?
This car has been around since 1971 and has always been of special interest to me.
I was entertained by Ben Heyderich, who commissioned it from Frua with Ferry Porsche's blessing, and have sat in the car (unfortunately it was a non-runner). I tried to persuade Ben to sell me it, but it was his 'baby' and he wasn't interested.
However, at no time in the last 41 years nor when I was in conversation with Ben has the name Vizcaya ever cropped up! Yet, suddenly, it has appeared with that name on some sites. I have no idea where it came from; maybe the idea was knocked around or maybe if the car had entered production (as was the intention, but a drawn-out lawsuit with Frua about who actually owned the design meant that never happened because the Porsche 914/6 was out of production by the time Ben won his case..) it would have been called that. But I never heard the name mentioned.
As a footnote Ben was tragically killed in his aerobatic aircraft in Latvia (or Lithuania, I can't remember now) 3 or 4 years ago. I don't know what has happened to this car now.