Rallye 350 package: Sebring Yellow paint, body-color urethane bumpers, W-25-style OAI hood, spoiler, blacked-out grille, 310 hp L-74 350

Years 1970, 1972–73 Models 1 Factory citations 1

Also described as Hurst/Olds package — replaces paint code on body tag; Cameo White w/gold, Rallye suspension, TH-400 w/Hurst Dual/GateHurst/Olds package (Ebony Black or Cameo White w/gold)

Documented applications

Cutlass / 4-4-2

1970 Confirmed

F-85 club coupe, Cutlass S sport & Holiday coupes; $157.98–$158.98; 3,547 built; conceived as the 1970 Hurst/Olds
1972 Factory-verified

Cutlass Supreme hardtop (4257) & convertible (4267); 624–629 built incl. 76 Indy Pace Cars; W-30 optional on H/O (X VIN). Factory engineering order Group 35W45: "W45 Special Performance Package - Available as Special Order Only" on 34257 & 34267; Mandatory with W45 = D-35, FE2, G-91 (3.23 axle), JL2, L-75 (455 4-bbl), M-40 (TH-400), W-25, W-26 (companion Group 35W46 pairs the H/O with L-77 W-30 engine)

GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.233.
1973 Confirmed

1,097 built on Cutlass S; std 275 hp 455; adds W-30 valves/springs (L-75), 3.08 axle

This page aggregates every documented appearance of W-45 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.