YP6 (B) ◑ Single-source

Cadillac · Regular Production Option

Custom Biarritz Classic (2,000 built)

Years 1978 Models 1

Documented applications

Eldorado →

• 1978 ◑ Single-source

  Astroroof/sunroof combos priced separately

  Grade note: single-source (Mileposts)

This page aggregates every documented appearance of YP6 (B) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.