GMC trucks are powerful and reliable, but they aren't necessarily known for topping the horsepower rankings. Here are the ...

GMC's huge Twin Six V12 gas engine was made to take on its diesel counterparts, powering fire trucks and farm machines, but it didn't stay on the market long.

It wasn't even used in a passenger car. Instead, the Twin Six pulled its weight under the hoods of GMC medium and heavy-duty trucks. We've dedicated this write-up to the GMC Twin Six due to it ...

As the most advanced and luxurious offering in GMC's heavy-duty lineup, it redefines expectations for what a work-focused ...

the first offering of the exclusive Denali line on a heavy-duty GMC pickup. The Sierra Denali HD leads a comprehensively redesigned lineup of 2011 Sierra 2500HD and 3500HD trucks that go on sale ...

GMC offers a handful of truck models for the 2016 model year. There’s the mid-size Canyon, the full-size Sierra, and heavy-duty Sierra models. The Canyon is available with four-cylinder or V-6 power, ...

Welcome to our "Best Heavy-Duty Pickup Trucks" hub, the ultimate destination for automotive rankings. We have painstakingly crunched the data to extrapolate which vehicles are superior in five key ...