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 Family II I4 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.
Read more about this topic: GM Epsilon Platform
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—Herman Melville (1819–1891)
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