The 2019 GMC Sierra AT4 proves that GM's upmarket truck and SUV brand is getting serious about offering rough-and-tumble capability to rival the Ford F-150, Toyota Tundra, Ram 1500 and Nissan Titan.
There really is a difference when it comes to midsize SUVs that are built for both off-road excitement and daily family commutes. In that world, we found that the 2024 GMC Acadia AT4 stood out.