General Motors Chairman and CEO Rick Wagoner

General Motors Chairman and CEO Rick Wagoner

General Motors Chairman and CEO Rick Wagoner announces the second-generation of GM's Hybrid System featuring a new lithium-ion battery that is nearly three times more powerful than the system it replaces, during a press conference at the Geneva International Motor Show in Geneva, Switzerland Tuesday, March 4, 2008. The new hybrid system will improve overall fuel economy by up to 20%. It will debut in North America in 2010, then expand globally.

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The 2008 Saturn Vue Greenline

Tom Strongman from FamilyCar.com drove the 2008 Vue Green Line hybrid and concluded that "while the Vue Green Line isn't as fuel-efficient as other hybrids, its hybrid system is simpler, which means lower cost, and it drives as smoothly as the regular gasoline model."