GM Authority is taking a closer look at the exterior dimensions for the 2027 GMC Sierra 1500, comparing them to the exterior ...
The Ram 3500 Cummins and GMC Sierra 3500 Duramax represent two very different approaches to premium heavy-duty diesel towing. Payload is close to 5,100 pounds on the tested trucks, while properly ...
Chevrolet Sells Seven Trims, GMC Sells Six: Here’s What They Actually Are Both trucks list the same four engines: a new 5.7-liter V8, a new 6.6-liter V8, an enhanced 2.7-liter TurboMax four-cylinder, ...
GM Authority spy photographers have spotted several 2027 GMC Sierra 3500 HD Dually prototypes testing on public roads, providing further evidence of something significant brewing just beneath the ...
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