[70CitrusZ]

In the end,(imho) the only copo's that are of any extra interest due to the "copo" name are the 427 and corvette engine transplant copos or "super cars".

The term supercar is generally assigned to the 427 transplant cars, and I think the only non 427 cars that slip into that group originally are the 350/360hp nova, and perhaps surprisingly, the corvair.
As as side note, although taxi cabs and fleet pick up trucks may have been copo's who cares.
The fact is there were probably a great many copo orders for cars that are of no special interest.

Also, a pace car is cool on its own, but I would not call a 325hp 396 powered Camaro a supercar.
Its an option car like a z-28 or an ss.

Officially, some may very well have been built on a copo basis,but only to facilitate an extended production of a limited time offering, not because of any special performance option.
just my .02.
Mark.