Courtesy of the Pontiac-Oakland Museum, I found some very interesting pics for you 73-77 A-Body guys. Some of these pics are very hard to locate within the vast library of the museum, but persistence, and a little Excedrin, seem to help.
1973 Grand Prix in the paint drying booth
The SD455 that never was.
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1959-1980 Pontiac Window Sticker Reproductions : http://www.pontiacwindowstickers.com
My Bio: I am currently writing articles for POCI's Smoke Signals magazine and enjoy promoting and discussing the history of the Pontiac Motor Division.