No, and probably not. The production numbers were too low. There existed a website of VW phantoms (
http://fakevolkswagen.blog.de/). It's gone now. This is from there;
http://ecomodder.com/forum/showthread.php/karmann-ghia-streamlining-photoshop-6720-6.html#post341868
Here's a picture from thesamba that was posted by the likely site owner, one prostreetnotch:
https://www.thesamba.com/vw/forum/viewtopic.php?p=5722421#5722421
VW did make a fastback prototype:
FAB WHEELS DIGEST (F.W.D.): Volkswagen Type 34 Karmann Ghia (1961-69)
That Gurgel is down in
cRiPpLe_rOoStEr territory.