The GMC Sierra HD line of heavy-duty pickups was reengineered for 2011, with a new frame, new front and rear...
How do midsize SUVs stack up in the latest round of crash tests?
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RelayRides, a San Francisco based startup, has just gotten a lot of help.
We've already sampled the 2014 Chevrolet Silverado, but its upmarket twin, the 2014 GMC Sierra made its official debut today.
For the new model year, GMC is upgrading two of its top vehicles.