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The Green Line just got longer. The 2008 Aura Green Line Hybrid is the second car to make use of the belt-alternator system (BAS) hybrid-assist technology that GM pioneered in the Saturn Vue Green Line Hybrid. The car will offer a 25-percent increase in fuel economy over the gasoline-only Aura, according to Saturn. Production of the Aura Green Line Hybrid is scheduled to begin in March 2007, and the car is expected to have a base price of less than $23,000.
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