2012 Buick LaCrosses eAssist Sedan

The big news for the 2012 model year Buick LaCrosse sedan is the introduction of a new standard 2.4-liter four-cylinder engine with eAssist and a newer, more powerful and more efficient version of the direct-injected, E85-capable 3.6-liter V6 unit that sits atop of the range.
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2011 Buick Envision Concept will be powered by GM’s PHEV plug-in hybrid system

The car concept and environmentally friendly, Buick Envision SUV that will debut at the Shanghai Auto Show, it is the crossover model was designed for China, as “it introduces the development direction for Buick’s future SUV products for the market”. The car study is the work of Shanghai GM and the Pan Asia Technical Automotive Center (PATAC).
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2011 Buick Envision Concept with plug-in hybrid system

2011 Buick Envision Concept will make its global debut at the Shanghai Auto Show on April 18. The show car is equipped with a plug-in hybrid system and "loads of new technologies", according to GM's China subsidiary. However, neither the drivetrain, nor the technologies are detailed, as the information will be released on April 18.
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2012 Buick Regal eAssist

At the Chicago Auto Show, Buick announced that the second model in its lineup to feature the eAssist “light electrification” system is the 2012 Regal. Using estimated fuel economy is 26 mpg city/37 mpg highway, while the overall improvement over the standard 2011 Regal fitted with a four-cylinder gasoline engine and six-speed transmission is 25%.
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