2025 Gmc Denali Ultimate 2025 Specs. Vehicle specs | 2025 sierra 2500hd & 3500hd denali ultimate you are currently viewing gmc.com (united states). Learn the ins and outs about the new 2025 gmc sierra 1500 4wd crew cab 157 denali.
Gmc’s luxury positioning in the gm truck lineup might make you question this denali ultimate’s workhorse abilities. Find information on performance, specs, engine, safety and more.