GM Epsilon platform
GM Epsilon platform | |
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Overview | |
Manufacturer | General Motors |
Production | 2003–present |
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 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 |
Related | GM Alpha platform |
Powertrain | |
Engine(s) |
Gasoline/Petrol engines: Ecotec I4 Ecotec Family 1 I4 54° V6 High Value V6 High Feature V6 Diesel engines: Multijet I4 Family B I4 Dmax V6 |
Chronology | |
Predecessor |
GM N platform GM2900 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, 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.
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:
- Regular
- 2002-2009 Opel Vectra C saloon and liftback
- 2003-2012 Saab 9-3
- 2004-2007 Chevrolet Malibu
- 2006-2009 Cadillac BLS
- Extended
- 2002-2009 Opel Vectra C Caravan
- 2003-2008 Opel Signum
- 2004-2007 Chevrolet Malibu Maxx
- 2005-2010 Pontiac G6
- 2005-2011 Fiat Croma
- 2007-2011 Saturn Aura
- 2008-2012 Chevrolet Malibu
Cancelled vehicles which would have used this platform:
- 2006 midsized Buick
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.[1]
Current and announced vehicles built on Epsilon II:
- 2008–present Opel Insignia, Buick Regal (saloon, hatchback, estate) (SWB)
- 2010–present Buick LaCrosse/Alpheon (LWB)
- 2010-2012 Saab 9-5 (LWB)
- 2012–present Roewe 950 (LWB)[2]
- 2012–present Chevrolet Malibu, Holden Malibu (SWB)
- 2012–present Cadillac XTS (LWB)
- 2013–present Chevrolet Impala (LWB)
Concept vehicles built on Epsilon II:
- 2007 Buick Riviera
- 2007 Opel GTC Concept
- 2006 Saab Aero X
Footnotes
- ↑ 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.
References
- Kranz, Rich (April 12, 2005). "GM lagging behind in booming sport wagon market". AutoWeek. Retrieved April 12, 2005.
- Smith, Mike (March 1, 2014). "2014 Chevrolet Malibu Safety Cage url=http://www.boronextrication.com/2014/03/01/2014-chevrolet-malibu-safety-cage/ accessdate=March 01, 2014".
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