Manufacturer General Motors | Production 2002–present | |
 | ||
Class Compact (C) platform
Mid-size (D) platform
Large car (E) platform Layout Front engine, front-wheel drive/all-wheel drive Body style(s) 2-door Convertible
4-door Sedan/Saloon
5-door Hatchback/Liftback
5-door Station wagon/Estate/Caravan
5-door Multi-purpose vehicle Vehicles Buick Lacrosse/Alpheon
Cadillac BLS
Cadillac XTS
Chevrolet Classic
Chevrolet Impala
Chevrolet/Holden Malibu
Chevrolet Malibu Maxx
Fiat Croma
Opel Insignia/Buick Regal
Opel Signum
Opel Vectra
Pontiac G6
Roewe 950
Saab 9-3
Saab 9-5
Saturn Aura | ||
Epsilon is General Motors' mid-size front-wheel drive automobile platform. The architecture was developed by Opel, and debuted in the 2002 Opel Vectra and 2003 Saab 9-3. Since this platform falls squarely in the center of the worldwide automobile market, GM plans to produce a great many Epsilon vehicles with over a dozen variations. As of 2005, it was GM's highest volume worldwide platform. Even after the dissolution of the GM/Fiat partnership, both companies retain the rights to continue developing Epsilon-derived models.
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Features
GM's Epsilon platform replaced the N platform in the US, and replaced the GM2900 platform elsewhere. Vehicles of this platform generally carry the symbol "Z" in the fourth digit of their VINs.
When the platform debuted, there was talk of an "Epsilon Wide" derivative, which was supposed to have provided the underpinnings for the Buick LaCrosse and Saab 9-5. However, the program was cancelled and the LaCrosse was put on the W platform, and the 9-5 was given a quick refresh for the 2006 model year.
Many of the Epsilon vehicles use the Ecotec Inline-four engines and both the High Value and High Feature V6 engines.
The refreshed 2008 SAAB 9-3 debuted with an advanced version of all-wheel-drive it dubbed XWD, finally giving a definitive answer to rumors about the platform's ability to support AWD, which had been around since the debut of the platform.
The Lambda and Theta Premium crossover platforms are derived from Epsilon.
Vehicles
Vehicles based on the Epsilon I platform:
Cancelled vehicles which would have used this platform:
Epsilon II
A new version of the Epsilon, dubbed Epsilon II, debuted in 2008. It is adaptable for front and all-wheel drive applications. In long wheelbase format, Epsilon II supports US EPA Large Cars, allowing GM to replace the G and W platforms. The architecture was developed by Opel in Rüsselsheim, Germany. Many safety features and AWD fitment modifications were done by Saab.
Current and announced vehicles built on Epsilon II:
Concept vehicles built on Epsilon II:
E2XX
E2XX is the successor to the Epsilon II platform. It is a fork of the Epsilon II platform, consistent with other platform revamps, such as D2XX (based on Delta II).
The E2XX platform targets weight reduction, improved interior, and longer wheelbases. The E2XX is utilized in the redesigned 2016 Chevrolet Malibu.
P2XX
P2XX is the longer variant of the E2XX platform. It is expected to be used in the 2017 Buick LaCrosse and next generation Chevrolet Impala.
C1XX
C1XX is the crossover variant of the E2XX platform, replacing the Theta Premium and Lambda platforms. It underpins the 2017 Cadillac XT5 and soon to be followed the 2017 GMC Acadia in regular wheelbase form, while the 2018 Chevrolet Traverse and 2018 Buick Enclave will utilize the long wheelbase variant.