https://www.yenko.net/ubbthreads/show...fpart/all/vc/1
From Jim Mattison, who worked in the Central Office and processed the orders:
"During the years that I was a part of this group, we processed many orders for vehicles with special paint. Although these vehicles were ordered with "special paint", they are not concidered to be COPO cars. I'm surprised that more of these "special paint" cars haven't shown-up, as many of these orders were for performance cars."
The special paint cars just required an approval and costing. A FSO # would be assigned. 1001xA SPECIAL PAINT would be on the window sticker.
COPO's required thought and engineering. How are we going to modify this truck chassis to be 10.5 inches longer? What radiator to cool a 427 in a Camaro? The COPO # was a different format and would appear on the window sticker with the cost of the COPO.
Here's a page from Chevrolet Engineering News, December 65.
