We've already sampled the 2014 Chevrolet Silverado, but its upmarket twin, the 2014 GMC Sierra made its official debut today.
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Detroit-based auto maker General Motors is in the process of redesigning its full-size light-duty pickup trucks.
Consider it more evolution than revolution for GM's biggest trucks you can drive without a commercial license.
General Motors is leaner and meaner, but is it greener?