2024 Gmc At4x Review. — the 2024 model year changed the gmc’s front bumper to the aev by default with the at4x package, eliminating another big difference between earlier. 2024 sierra at4x gets duramax diesel power.
The 2024 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package. — 2024 gmc sierra 1500 at4.