Hi Carl, I was trying to hold back from saying anything, as to take away from an interesting S30 thread.... I would (as you know) take what Goertz says with a bucket load of salt. Translated (professionally) from Japanese Nostalgic Hero magazine (Nov.1995 Vol. 51). "Rumours have appeared that it was Goertz who designed the Silvia, Nissan A550X". The article this is taken from, was written with "special thanks to Kimura Kazuo" as an effort at putting the record straight for the Silvia (CSP311) design. It would appear Kimura had as much, if not more input on this (A550X) project as Goertz, especially when you include looking at his actual time in Japan (Goertz), let alone at say, at Yamaha. If you look at the timeline(s), Goertz contract with Nissan was from May 1963, for one year, thus ending May 1964. The A550X project was started just before the CSP311 project, probably the first few months on 1963, then halted (in May) to concentrate on the CSP311 prototype. The A550X was restarted in the spring of 1964. Either Goertz worked outside his contract until the Nissan/Yamaha partnership ended in September 1964 (unlikely), or gave some input, or just happened to have everything done within limited time visits before the end of his contract (one visit?)? Most likely just some input....?