Before the GMC Sierra was its own model, it designated trim levels. Here's the history of Sierra Grande, High Sierra, and ...

GM is elbows deep in development of the next-gen 2027 GMC Sierra 1500, and GM Authority has captured its closest look yet at the upcoming full-size pickup.

This 2024 GMC Sierra 2500 HD definitely wants to be seen with its colorful finish and ginormous wheels, but do you like it?

After a near-fatal crash, a tow-truck driver rebuilt his life — and a 1963 GMC-Chevy-Dodge mongrel that became his ...