QD4 (R) ◑ Single-source

Cadillac · Regular Production Option

Steel-belted radial whitewalls

Years 1973 Models 1

Documented applications

DeVille / Calais →

• 1973 ◑ Single-source

  Exc. 75

This page aggregates every documented appearance of QD4 (R) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.