2024 Gmc Sierra At4x 2024. Fuel economy of the 2024 gmc sierra 4wd at4x. 2024 gmc sierra hd at4x & at4x aev edition specifications.

2024 gmc sierra 1500 at4x aev edition | cars.com photo by christian lantry. Gmc is unveiling the 2024 sierra heavy duty and the first ever 2024 sierra hd denali ultimate, redefining the power and capability of this dominating truck.