I was a designer for Ford in 1953, and 1956-1961.
Renderings by Geza Loczi, Jerry Hirschberg, Harry Bradley, Clark Lincoln, and yours truly.
I ended up with a box of slides from a major Buick-Oldsmobile show previewing the 1977 Buick and Oldsmobile models.
Jack Humbert, the greatly respected Pontiac studio chief in those years, was very tolerant of my naiveté.
Videos from Archive.org.