Gmc Sierra 2025 Denali Ultimate 2025 Specs. 2025 gmc sierra 3500hd denali ultimate specs. The 2025 gmc sierra 3500hd denali ultimate comes equipped with a gasoline powered engine that produces 470 hp @ 2800 rpm and four.
The 2025 gmc sierra 1500 denali ultimate comes equipped with a gasoline powered engine that produces 420 hp @ 5600 rpm and four. Available with a choice of engines, it comes in a singular body style, the crew.