Buick
GSX (1972)

Why it matters

The 1972 GSX was the last year of the package and the rarest. Only 44 were built, and the source says Buick did not mention the GSX in the sales brochure or advertising that year.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

• Buick GSX (1972) (Wikimedia Commons search)
  Photo: Robotriot · CC BY-SA 3.0
• Buick GSX (1972) (Wikimedia Commons search)
  Photo: Robotriot · CC BY-SA 3.0

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Production of the 1972 GSX fell with the move to lower-compression engines and a General Motors strike that delayed the new body style. The 44 cars were spread over twelve paint colours, and 18 are said to be one-off colour combinations once the vinyl-top colour is counted.

By engine, 16 had the 350, 4 the base 455 and 24 the Stage 1 455; only 4 had a 4-speed manual and 40 an automatic.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Identification guide

How to tell an original from a replica or later conversion.

For 1972 the hood tachometer, front spoiler, 5-spoke wheels and G60 tires were no longer standard but optional, so a genuine car may lack them. Three engines were offered (350 at 195 hp, 455 at 250 hp, Stage 1 455 at 270 hp), with a 3-speed stick standard on the 350s and a 4-speed or TH-400 on the 455s. Three cars had unique interiors: black notchback, white notchback and saddle bench.

Sources

Each number links to the exact facts it supports.

1. 1
   Buick GSX: A Limited Edition Muscle Car (1970, 1971, & 1972) Level B Muscle Cars Illustrated · 2022-05-18

   • sales plummeted to 44 units in 1972
   • 455 CID V-8 Stage 1 with 270 hp/390 lb-ft
   • Stage 1 with 270 hp/390 lb-ft
   • 270 hp/390 lb-ft
   • Power Front Disc Brakes (Standard on 455s, Optional on 350s)

   Accessed 2026-11-12
2. 2
   Hagerty Media – Hemis are the baddest, rarest muscle cars out there. Or are they? Level B

   • 44 GSX packages built in 1972

   Accessed 2026-11-12