We're taking a closer look at this pre-refresh Chevy Silverado Trail Boss LT and refreshed GMC Sierra AT4 in the following GM Authority Photo Comparison.

The Elevation and AT4 trim levels of the 2026 GMC Sierra EV have debuted for the Canadian market, with details of standard ...

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 ...

The 2026 GMC Sierra EV AT4 provides off-roading upgrades that would have been useful when I got stuck in the mud.

The 2026 GMC Sierra EV is here. GMC’s electric pickup is now more affordable and capable than ever, thanks to the new AT4 and Elevation ... After Dark interior, and 18″ machine-face wheels.

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 ...

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 ...