2012 Buick Regal with eAssist Fuel-Saving Technology

General Motors Global Chief Engineer eAssist Stephen Poulos discusses the "light electrification" system that improves fuel economy during the unveiling of the 2012 Buick Regal with eAssist at a special Buick event Tuesday, February 8, 2011 in Chicago, IL. The eAssist technology improves overall fuel economy by 25-percent. Estimated fuel economy is 26 mpg city and 37 mpg on the highway - pending EPA certification. (Buick Photo by Steve Fecht)