2025 Denali Ultimate Hd Review. After running errands around town in the massive pickup truck, and then hooking up some boats to the rear end for some towing, here are the pros and cons of gmc’s largest, and most luxurious,. The 2025 gmc sierra hd denali ultimate, refreshed for the 2025 model year, is gmc's most premium, luxurious and technologically advanced truck yet.
2025 gmc sierra 1500 denali ultimate review. Adaptive cruise control with trailering assist, previously standard on the 2025 at4x and denali ultimate trim levels, now comes on the at4 and denali trims as well.