Removable roof hatch panels ("Sun Coupe" folding top used distinct pkg; 45 GS Stage 1 Sun Coupes in '73)

Years 1973, 1987 Models 2 Factory citations 1

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Also described as Roof, hatch

Also documented for Chevrolet Pontiac

Documented applications

Regal / Century

1973 Single-source

Century

Regal — G-body (1983–1987)

1987 Factory-verified

not with C95; gnttype.org's 1987 option sheet; shared G-body code, cited from the Monte Carlo kit

GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.

This page aggregates every documented appearance of CC1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.