New 2025 Gmc Sierra 2025 Denali Ultimate. The 2025 gmc sierra 1500 denali ultimate is the absolute top rung in the brand’s luxury truck hierarchy. The long one is called the yukon xl.
While we still have no details about the. The 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.