General Motors’ new eAssist technology employs a 115-volt lithium-ion battery and 15-kilowatt electric motor to increase fuel economy by 25 percent compared to today’s four-cylinder LaCrosse. This means the Buick sedan will achieve an estimated 25/37 miles per gallon (city/highway). During initial acceleration, the electric motor delivers 15 horsepower and 79 pound-feet of torque to get the LaCrosse moving. GM will be offering eAssist as standard equipment on all 2012 Buick LaCrosses equipped with the 2.4-liter four, and pricing is expected to begin around $30,000.

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