2025 Gmc Sierra 2500hd At4x Aev Edition. Here's a list of official specs for the 2025 gmc sierra hd at4x & at4x aev edition. Offroader · may 1, 2023 · edited may 1, 2023.

With gmc giving the 2025 sierra hd lineup a host of updates, including refreshed styling and a snazzier interior, the at4x and extreme aev edition reap the benefits. Revealed on monday in both regular and more capable aev edition guises, the sierra hd at4x is due at dealerships this fall as a 2025 model.