General Motors has embraced the sharing of automobile platforms globally, although the company currently uses the term architecture rather than platform.

Traditionally, General Motors used letters from the latin alphabet to designate long-running vehicle families aimed at similar market niches. For example, the E-body Oldsmobile Toronado personal luxury coupe was redesigned significantly through four generations from 1966 through 1992, but retained the same letter designation throughout.

The chassis identification can generally be found as the 4th letter of the Vehicle Identification Number. GM also uses the letter designations to identify service manuals, owner manuals, and other publications. Frequently, the letter designations were used in mainstream automotive reporting and were familiar to customers, especially in the case of car families that were visually similar, such as the J-bodies.

In some cases, the name was retained for a market segment even while the architecture diverged radically. In 1982, the A-body switched from rear to front wheel drive. The former chassis continued, now with the G-body name, while the front drive A-body was new design. In other cases, GM has used varied letter designations for similar products. The modern G, H, and K platforms are reported to be closely related, but GM has given different letter designations to various models.

In the 2000s, GM began using a more explicit platform naming scheme based on the greek alphabet. However many latin letter-designated products are still being sold.

Current platforms

Current GM platforms:

Future platforms:

Current and Historical platform applications

As mentioned above, GM used platforms to make a hierarchy of models aimed at different market segments. The following table attempts to place each shared platform in context. As General Motors has integrated worldwide operations, platforms are now shared globally.

Front wheel drive

Vehicle Type Platform Chevrolet Pontiac Oldsmobile Buick Cadillac Saturn Geo GMC Opel Daewoo
Subcompact M-body Sprint
Metro
Firefly - - - - Metro - - -
Subcompact GM4200 Celta - - - - - - - Corsa -
Subcompact Daewoo T Aveo G3
Wave
- - - - - - - Kalos
Subcompact Gamma
SCCS
Corsa - - - - - - - Corsa
Meriva
Combo
-
Compact X-body Citation Phoenix Omega Skylark - - - - - -
Compact J-body Cavalier 2000
J2000
Sunbird
Sunfire
Firenza Skyhawk Cimarron - - - Ascona Espero
Compact N-body
L-body
Beretta
Corsica
Malibu
Grand Am
Tempest
Cutlass Calais
Achieva
Alero
Cutlass
Skylark
Somerset
- - - - - -
Compact P-body Spectrum Asüna Sunfire - - - - Storm
Spectrum
- - -
Compact T-body - LeMans
Asüna SE/GT
Passport Optima
- - - - - - Kadett
Astra
Zafira
LeMans
Cielo
Compact S-body Prizm
Nova
Vibe - - - - Prizm - - -
Compact
Compact MPV
Delta Cobalt
Cruze
HHR
Orlando
G5
G4
Pursuit
- - - Ion
Astra
- - Astra
Zafira
Lacetti
Mid-size A-body Celebrity 6000 Cutlass Ciera
Cutlass Cruiser
Century - - - - - -
Mid-size W-body Lumina
Monte Carlo
Impala
Grand Prix Cutlass Supreme
Intrigue
Regal
Century
LaCrosse
- - - - - -
Mid-size GM2900 - - - - - L-Series - - Vectra -
Mid-size Epsilon Malibu
Malibu Maxx
G6 - Regal
LaCrosse
BLS Aura - - Vectra
Insignia
-
Full-size H-body
G-body
C-body
K-body
- Bonneville Eighty-Eight
Ninety-Eight
Aurora
LeSabre
Electra
Park Avenue
Riviera
Lucerne
Deville
Seville
DTS
- - - - -
Personal Luxury E-body
V-body
- - Toronado Riviera
Reatta
Eldorado
Allante
- - - - -
Compact Crossover
Mid-size Crossover
Theta Equinox
Captiva
Torrent - - SRX Vue - Terrain Antara Winstorm
Minivan
Mid-size Crossover
U-body Lumina APV
Venture
Uplander
Trans Sport
Montana
Aztek
Silhouette Terraza
Rendezvous
GL8
- Relay - - Sintra -
Full-size Crossover Lambda Traverse - - Enclave - Outlook - Acadia - -

Rear wheel drive

GM reused some platform names between the front and rear wheel drive families.

Vehicle Type Platform Chevrolet Pontiac Oldsmobile Buick Cadillac Saturn GMC Hummer Opel Holden
Subcompact H-body Vega
Monza
Astre
Sunbird
Starfire Skyhawk - - - - - -
Subcompact T-body Chevette T1000 - - - - - - Kadett Gemini
Compact Y-body
Z-body
Corvair Tempest
LeMans
F-85
Cutlass
Special
Skylark
- - - - - -
Compact X-body
K-body
Nova Ventura
Phoenix
Omega Apollo Seville - - - - -
Mid-size A-body
G-body
Malibu
Chevelle
El Camino
Tempest
Grand Prix
LeMans
Bonneville
Cutlass
Cutlass Supreme
Special
Century
Regal
- - Caballero - - -
Mid-size
Full-size
V-body - GTO - - Catera - - - Commodore
Omega
Commodore
Caprice
Monaro
Mid-size
Mid-size Crossover
Sigma - - - - CTS
STS
SRX
- - - - -
Full-size B-body
C-body
D-body
Impala
Caprice
Bonneville
Catalina
Parisienne
Safari
88
98
Custom Cruiser
LeSabre
Electra
Estate
Roadmaster
DeVille
Fleetwood
Brougham
- - - - -
Full-size
Pony car
Zeta Camaro G8 - - - - - - - Commodore
Caprice
Personal Luxury E-body - - - Riviera - - - - - -
Pony car F-body Camaro Firebird - - - - - - - -
Sports car Y-body Corvette - - - XLR - - - - -
Roadster Kappa - Solstice - - - Sky - - GT -
Compact Pickup
Mid-size Pickup
GMT300
GMT355
S10
SSR
Colorado
- - - - - S15
Sonoma
Canyon
- - Colorado
Full-size Pickup
Full-size SUT
GMT800
GMT900
Silverado
Avalanche
- - - Escalade EXT - Sierra H2 SUT - -
Compact SUV Tracker Sunrunner - - - - Tracker - - -
Mid-size SUV GMT300
GMT360
Blazer
TrailBlazer
- Bravada Rainier - - Jimmy
Envoy
H3 - -
Full-size SUV GMT800
GMT900
Tahoe
Suburban
- - - Escalade - Yukon H2 - -
Minivan M-body Astro - - - - - Safari - - -
Full-size Van GMT600 Express - - - - - Savana - - -

Others

GM also has/had a number of non-shared and international platforms:

Badge-engineered and non-GM products:

External links


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