Interesting enough, a Copper Corvette is displayed on the 1994 Model page in the Tech Center > Model Center:
Corvette Action Center | Model Center | C4 | 1994 Corvette Center
Exact numbers weren't recorded for the various options ordered, except as a total for each option. The best we can do is extrapolate a number.
Total 1994 production = 23,330
Convertibles = 5,346 were about 23% of total production
Copper Metallic = 116 X 23% = 26 or 27 convertibles in Copper Metallic.
Auxiliary Hardtop total = 682 of the total convertibles (5,346) = 13%
Of 26 Copper Metallic convertibles, if 13% of them had Auxiliary hardtops = 3
Just a guess.
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