I came across this at the Kerbeck site
https://kerbeck.com/kerbeck-heritage-collection/
I think I understand COPO (Central Office Production Order) which allowed dealers to order cars with unique options.
There were a handful of normal options (dual roof, electronic HVAC), but, what might be the options uniquely added/deleted from a ZR-1 for COPO?
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1990 ZR-1 #2180
Red/Black
Many of the usual mods for
460HP, tuned by Marc Haibeck
ZR-1 Net Registry Member #1548