An article entitled
12,500 Allison Folks See the New GM Cars appears in the October 7, 1966 AllisoNews, v. 26, no. 8. It features a picture of a base model coupe. The copy states, "The annual Allison new car preview drew thousands of Allison employees and members of their families to the POWERAMA last week to look at the new 1967 General Motors automobiles. Some 12,500 people came to see the various GM models, each of which now bears the new General Motors Mark of Excellence and comes with a variety of new safely features and an expanded and improved warranty.
The striking Chevrolet Camaro, GM's newest small sports ear, drew the attention of young and old alike. Although the new car preview is officially over, powerama will display other new GM ears as they are available in the weeks to come."
I was wondering what Powerama was and it turns out that it was a large display area of the Allison plant featuring products built by the Allison division.
I found it at the Digital Collections of IUPUI University Library. Use the tools to zoom in here:
http://ulib.iupuidigital.org/cdm/compoundobject/collection/AT/id/11391/rec/2