2025 Gmc Sierra Denali Dually. The spec sheet for the gmc sierra ev denali is pretty impressive: The 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.

The denali trim moves to second place in the sierra hd’s hierarchy for the 2025 model year with the introduction of the new denali ultimate trim, available for both the 2500 and 3500 models. The 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.