Inside the Sierra AT4X AEV is a giant 12.3-inch digital gauge cluster and a 13.4-inch infotainment touchscreen.

The Sierra 2500HD AT4X AEV with the diesel V-8 got to 60 mph ... Those who stick with the GMC's standard gas-fed V-8 should expect to see even worse fuel economy than with the diesel option.

Colton is a big GMC fan, owning two 2024 GMC Sierra 2500 HD AT4X trucks. However, he may not be a fan for much longer. Imagine the dismay of a truck owner who has just spent $100,000 on a new 2500 ...

GMC's MultiPro Tailgate is standard equipment here ... obtaining this outsize truck requires herding Benjamins by the barnful. The 2024 Sierra 2500HD AT4X AEV starts at $94,290. That's with the $9495 ...

In October 2022, GM unveiled the refreshed 2024 GMC Sierra HD, debuting exterior styling enhancements, a new interior, a revised trim level lineup, new tech like standard wireless CarPlay and ...

The Duramax diesel is a series of diesel engines manufactured by General Motors. Here's a breakdown of the generations over the years.

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title ...

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title ...

GMC Sierra 2500 HD Crew Cab Pro 4x4 features the long bed configuration and has just 284 miles on its 6.6-liter V8 engine ...