Opel Commodore

The Opel Commodore B was introduced into the UK in 1972, replacing the Commodore A series, and as the "big brother" 6 cylinder model to the Opel Rekord D 4 cylinder models. There was no Vauxhall parallel model at this time. Initially sold with 2.5, 2.8 carburated and 2.8 fuel injected engines, the less popular 2.5 135bhp engine was dropped from the UK market in 1974. There were 2 and 4 door versions of the GS (2.8 carb) 155bhp and GS/E (2.8 inj).

The Commodore B was replaced in 1976 by the Commodore C/Rekord E model which were not very popular and they themselves were replaced by the Senator A model in 1978. 

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Interior Features Exterior Features
Options Technical Specifications

The following details are for a 1976 Commodore GS 2.8 (GS/E variations in brackets)

Interior Features

  • Multi-control ventilation with 2 speed fan
  • Halogen headlamps
  • Two speed electric windscreen wipers
  • Electric windscreen washers with headlamp wash-wipe system
  • Two-tone horn
  • Speedometer with odometer and trip odometer
  • Tachometer
  • Gauges for temperature, voltmeter and oil pressure
  • Warning lamps for ignition, oil pressure, turn signals, parking brake and high beam
  • Emergency 4 way flasher button
  • Illuminated electric clock
  • Illuminated glove compartment
  • Combined steering and ignition lock
  • Glareproof interior rearview mirror
  • Two padded sun visors
  • Sports steering wheel
  • Fully adjustable bucket seats with removable headrests
  • Tunnel console with ashtray and cigar lighter
  • Spare wheel upright at side of luggage compartment
  • Four speed manual gearbox with floor mounted selector
  • Electrically heated rear window demister 
  • Inertia reel 3 point seat belts for front seats
  • Toolkit
  • Carpet
  • Cloth trim
  • Coat hooks
  • Dashboard operated boot release (GS/E only)

Exterior Features

  • Pencil beam long range spots mounted on front bumper (GS only)
  • Laminated windshield (GS/E tinted and shade band)
  • Front spoiler (GS/E only)
  • Limited slip differential
  • Gas filled shock absorbers
  • Ventilated front disc brakes (GS/E discs front and rear)
  • Power assisted steering 
  • Hinged rear windows (2dr model) 
  • Locking fuel cap


  • 3 speed auto transmission
  • Sunroof (standard on GS/E)
  • Metallic paint
  • Tinted glass (standard on GS/E)
  • Vinyl roof (colour co-ordinated for GS/E only)

Technical Specifications


GS 2.8HC
The GS 2.8HC engine is a liquid cooled six cylinder in-line high cam unit. Hydraulic valve lifters. Steel forged crankshaft, twin choke down-draught carbs with auto choke. Automatic ignition advance by centrifugal force and vacuum. Replaceable full flow oil filter.

Bhp 158.0 @ 5300 rpm.

Torque (Max) 174 lb/ft @ 4000 rpm.

Compression ratio: 9.5:1 (4-star 98 octane fuel)

Maximum speed 125 mph (manual), 123 mph (automatic)
GS/E 2.8EC
The 2.8EC engine fitted to the GS/E is identical to the GS 2.8HC engine other than the fuel injection replacing the twin choke carbs. Some of the stats below are boosted by this variation.

Bhp 175 @ 5,600rpm

Torque 182 lb/ft @ 4,500rpm

Compression ratio: 9.5:1 (4-star 98 octane fuel)

Maximum speed 132 mph (manual), 126 mph (automatic)


4-speed all-syncromesh gearbox with centre-console shift. GM automatic transmission, floor mounted T-bar shift lever optional at no extra cost.
Final drive ratios: 2.8/GS (manual), 3.45:1 2.8 GS/E (manual), 3.45:1


Front: Independent. Telescopic gas shock absorbers, coil springs. Anti-roll bar.
Rear: live, coil springs on trailing arms,lateral track bar, telescopic gas shock absorbers. Anti-roll bar.


Dual circuit, servo-assisted, with 10.55 inch diameter ventilated discs at the front, 10.79 inch diameter solid discs at the rear. 


Re-circulating ball system, power assisted. Energy-absorbing steering column. Turning circle, 36.7ft.


Steel 6Jx14 sports wheels with 175HR-14 XAS radial tyres (GS only)
Ronal alloy 6J-14 wheels with 195HR-14 tyres (GS/E only).


12 volt negative earth system. 44 Ah battery. 55 amp alternator.


Kerb weight: Saloons 2690lbs Coupe 2635lbs
Gross vehicle weight: 3784lbs


Overall length 181"
Overall width 68"
Overall height 55.5"
Wheelbase 105"
Track front 55.5"
Track rear 55.1"