Not sure if this was the one that was sold recently :
https://suchen.mobile.de/fahrzeuge/details.html?id=256305054 (https://suchen.mobile.de/fahrzeuge/details.html?id=256305054)
Me thinks it's the same one..
Yes, I think there is only 1 of these in this color and spec. I'm sure this probably isn't the only rear-sunroof W116, but this car has been passed around a lot.
Here is another rear sunroof W116 I found.
(https://s31.postimg.org/9xcq14pm3/pdvd003ezi_1600x1200.jpg)
(https://s31.postimg.org/8zsgzf55n/pdvd004a_1600x1200.jpg)
https://www.iaai.com/Vehicle?itemID=27486248&RowNumber=13&loadRecent=True
front and rear sunroofs! Limo!
buy it now!