Let's see... - 1961 Ford Galaxie headlight profile - 1960 Ford Frontenac grille - 1964 Ford Falcon greenhouse - Mid-60s Ford Zephyr/Zodiac side sculpting - 1960s Ford cheapie hubcaps Yep, must be GM!
I took a look at this during lunch today and ended up finding it. Unfortunately, I became busy immediately afterward and now I've forgotten some of the details and can't even recall where I saw it. I believe this car was called the "Sprint" and was a 1960 prototype on the GM platform that eventually became the Vauxhall HA Viva/Envoy Epic/Bedford HA/etc. I'm sure Dino will correct me if I'm getting the details wrong. And kudos to Gabriel for calling out the GM/Vauxhall connection right away!
Yes, that's basically it, Vauxhall XP-714, considered also as one of the influences in development of Opel Kadett A. Full story available at: VAUXHALL HA - VIVA
Now I probably know more about the Vauxhall Viva story than I really care for ... but, interestingly, I could not find any picture of the XP-714 prototype on that site! Many of fairly similar cars, but not of that specific one. Actually, it was the uncharacteristic grille that initially led me to think of a possible (but later) Soviet look-a-like.
Found yesterday on one of the many automotive forums I frequent, but I can't recall which: Image Unavailable, Please Login
The closest Ghia-bodied 195 would have to be 0121/S, but when compared side-by-side, the two designs probably have less in common than you were thinking. Image Unavailable, Please Login Image Unavailable, Please Login
In response to all of your thoughts so far: Not Touring, not Ferrari, and not AC. Not Ghia-Aigle and not a US car. Not Ghia.