I knew there was a article on the HAMB about the Palamino and Cameo pickups. Ive never seen even one of them.
I haven't seen one either and since all I saw was red x's heres somes pics... http://www.1955gmc.com/1957palomino.html
Old Wolf you are correct... Quoted from attached article... "This vehicle is 1 of 1 manufactured by the factory in 1957 for the New York Autorama. It was outfitted with a V8 Pontiac 347 cubic-inch engine. It has custom US. Royal Master Tires made for all GM 1957 show vehicles only. Custom paint colors by GM for Autorama show (paint number FXGold.) Custom leather interior by GM for Autorama show vehicles." https://www.conceptcarz.com/vehicle/z12868/GMC-Palomino.aspx