Performance package, Z06 commemorative edition

Years 1965, 2004 Models 2 Factory citations 3

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Also described as Caprice Custom SedanCaprice Custom Sedan package

Documented applications

Impala / Full-Size

1965 only Factory-verified

This was the optional Caprice package that could be added to the Impala 4 door sport sedan. This is the only year the Caprice was an option.

GM Heritage factory kit — 1965 Chevrolet, p.2.
1965 Factory-verified

luxury package on Impala 4-door hardtop; became the Caprice series in 1966

GM Heritage factory kit — 1965 Chevrolet, p.2.

Corvette — C5 (1997–2004)

2004 Factory-verified

GM factory document — 2004 chevrolet corvette rpo code list, p.1.

This page aggregates every documented appearance of Z18 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.