In almost 25 years powering General Motors trucks and SUVs, the 6.6-liter Duramax V8 diesel engine has earned a loyal ...

Every week, I get emails from people asking a version of the same question: Which full-size truck should I buy? The honest ...

GM Authority is taking a closer look at the interior colors announced thus far for the next-generation 2027 GMC Sierra 1500, ...

The 2026 GMC Sierra 1500 is an capable but upscale full-size truck. Here's what drivers and potential buyers should know.

The all-new 2027 GMC Sierra introduces a lengthy roster of changes, including redesigned exterior styling, a reworked cabin, updated powertrains, new technology, and a revised trim lineup. As is ...

This summer, I drove a 2026 GMC Sierra EV to my buddy’s farm in Maine. He has a diesel, manual, OBS Ford dump truck, and he said the same thing we’re probably going to get in the comments section ...

A 2021 GMC Sierra owner hesitates to upgrade to a 2026 Denali due to GM 6.2L V8 lifter and crankshaft defect concerns. We ...

General Motors is doing a show of strength this summer, presenting both the all-new fifth-generation Chevy Silverado and the sixth iteration of the GMC Sierra, almost at the same time. The Ford ...

Forbes contributors publish independent expert analyses and insights. Auto journalist and traffic safety/road rage expert. This voice experience is generated by AI. Learn more. This voice experience ...

[This story originally appeared in the September 2004 issue of MotorTrend with the headline "Moving Mountains."] Sometime during the night of September 29, 1913, Rudolph Diesel, 55 years old, roughly ...

With the launch of an all-new 2027 GMC Sierra 1500 on the horizon, truck buyers looking to avoid the inevitable price increase may decide to shop pre-owned. Targeting five-year-old Sierras is a great ...

2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor.