Sierra 2500 represents the sixth model year of the fourth-gen GMC Sierra HD. Here's everything that's new and different about ...

We're taking a closer look at the 2025 GMC Sierra AT4 and Sierra Elevation in the following side-by-side photo comparison, ...

Originally available in Denali specification exclusively, the Sierra EV is entering ... and Forest Storm for the interior. GMC says that Forest Storm is exclusive to the AT4 for model year 2026.

When you want to go off-road, uptown-style, GMC ... the HD AT4 -- has an MSRP that starts at $70,100. Both the 2500 and 3500 Sierra Heavy Duty trucks have an AT4 trim. The HDs share many interior ...

The next new trim for the 2026 Sierra EV is the AT4 and brings GMC's off-road treatment to the ... open pore wood interior trim, Perimeter grille illumination, 22-inch wheels, and Super Cruise.

Get an online offer in 2 minutes using our Sell My Car tool. Actual price and payments may be different due to local rebates, specials, fees, and credit qualifications. Consult your dealer for actual ...

Electric 2020 GMC Sierra 2500HD AT4 on Track at Speed In-cab video clip of Magna's 2020 GMC Sierra 2500 BEV being driven at speed on the 1.5-mile road course at M1 Concourse. Related Videos ...

Please use care in your use of the information provided. How much horsepower and torque does a 2024 GMC Sierra 2500HD Pro Regular Cab Long Box have? The 2024 GMC Sierra 2500HD Pro Regular Cab Long ...

Please use care in your use of the information provided. How much horsepower and torque does a 2025 GMC Sierra 2500HD Pro Regular Cab Long Box have? The 2025 GMC Sierra 2500HD Pro Regular Cab Long ...

What is the MPG of the 2021 GMC Sierra 1500 AT4? The 2021 GMC Sierra 1500 AT4 offers up to 18 MPG in city driving and 21 MPG on the highway for a combined rating of 19 MPG. These figures are based ...