GM Epsilon platform
|GM Epsilon platform|
|Body and chassis|
|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
5-door Station wagon/Estate/Caravan
5-door Multi-purpose vehicle
Chevrolet Malibu Maxx
Opel Insignia/Buick Regal
Ecotec Family II I4
Ecotec Family 1 I4
High Value V6
High Feature V6
Family B I4
|Predecessor||GM N platform
GM W platform
GM G platform
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[update], it is 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.
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.
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.
Vehicles based on the Epsilon I platform:
Cancelled vehicles which would have used this platform:
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.
Current and announced vehicles built on Epsilon II:
- 2008–present Opel Insignia, Buick Regal (saloon, liftback, estate) (SWB)
- 2010–present Buick LaCrosse/Alpheon (LWB)
- 2010-2012 Saab 9-5 (LWB)
- 2012–present Roewe 950 (LWB)
- 2013–present Chevrolet Malibu, Holden Malibu (SWB)
- 2013–present Cadillac XTS (LWB)
- 2014-present Chevrolet Impala (LWB)
Concept vehicles built on Epsilon II:
- Meiners, Jens (May 2009). "Spied: 2010 Saab 9-5". Car and Driver. Hearst Magazines. Retrieved 2013-05-05.
- Sutcliffe, Ashley (12 April 2012). "Roewe | Roewe 950 hits the market, priced competitively". chinacartimes.com. China Car Times - China Auto News. Retrieved 2 October 2012.
- Kranz, Rich (April 12, 2005). "GM lagging behind in booming sport wagon market". AutoWeek. Retrieved April 12, 2005.