2025 Gmc Sierra Denali Ultimate 2025 Hd. It completes a quarter mile run in 14.9 seconds. The 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.

November 2, 2025 by leave a comment. The 2025 gmc sierra hd denali ultimate, refreshed for the 2025 model year, is gmc’s most premium, luxurious and technologically advanced truck yet.