The 2023 GMC Sierra 1500 AT4X is being reviewed by various outlets, with some focusing on its off-road capabilities and appeal to grown-ups. There is also mention of an AEV edition, although it is unclear if this is a separate model or a trim of the Sierra 1500 AT4X. Additionally, some reviews appear to be discussing different vehicles, including the 2024 GMC Sierra AT4X AEV and the 2023 GMC Canyon AT4X.