General Motors' all-new 3.9L V6 has been honored with a Breakthrough Technology award by Popular Mechanics for its innovative use of variable valve timing in an overhead valve engine. For ages GM ...

Sure, it's possible to argue about the long-term benefits of ethanol, but GM's announcement that their new 3.9L V6 engine will be a flexible fuel engine is the less exciting of the two bits of news.

Our comparison will help you prioritize the trims that are right for you. 175.0-hp, 3.9-liter, V6 Cylinder Engine (Gasoline Fuel) ...

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Our comparison will help you prioritize the trims that are right for you. 175.0-hp, 3.9-liter, V6 Cylinder Engine (Gasoline Fuel) ...