Z2 / Z4 ● Confirmed

Buick · Regular Production Option

Divided 2nd seat / power tailgate window

Years 1970 Models 1

Documented applications

Full-Size — LeSabre / Electra / Wildcat →

• 1970 ● Confirmed

  Estate Wagon

This page aggregates every documented appearance of Z2 / Z4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.