Have you heard of a 1973 Karmann Ghia Sports Edition?
http://www.sunsetclassics.com/1973-karmann-ghia- convertible/images/1973-karmann-ghia-convertible.jpg wrong colour though
Yes I owned one way back when. They were known as a Limited Edition they made 150 of them. I don't know if any are in existance. If they are probably in Fla. Or California. You are correct they were all Saturn Yellow with the sport stripes. Alloy wheels, formula very shifter, wood grain dashboard. I have been looking for ten years and have not located any.
I have a yellow 1973 VW Ghia in my garage. It is the sport model. I bought it for my son in the 1990s. I want to sell it. The title is in my name. It hasn't been driven in 10 years. Let me know if you are interested. My email is email@example.com