Albrecht,
And yes, he did have some input to Nissans then design team in the mid to late 1960's, many dont like the fact, but, at the time, Nissan were wanting more export markets to enter, and felt that engaging a few consultants would help.
If it wasn't for Edward(?) Deeming, or Deming, in the early 1950's, there would have been very little manufacturing, in a country almost totally devestated after WW2
I have an uncle who also designs cars, for many manfacturers, including in past, Ford, GM, Pininfarina, Fiat, Mercedes, Skoda, and in last 10 years some Chinese manufacturers. He, like Goertz, is jst a paid consultant, and is given a job to do.
Here in Australia, think Project Blackwood, that became the XD Falcon, at MBercedes, the A series compacts, were styled by a him.
He also painted up Moffats race cars, and came up with the body work for the XC Falcon Cobras.
Best known as the originator f the Mad Max black supercharged coupe in Mad Max 1