Gmc 2024 Denali 2024 Dually Review. Carbuzz tested a sierra 1500 denali ultimate with the optional duramax engine, one of the few diesel trucks left on the market now that ram killed the ecodiesel and ford no. 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 gmcโs largest, and most luxurious,.
2024 gmc sierra 2500hd and 3500hd pickup trucks equipped with the denali ultimate trim are the only truck in gmcโs lineup that come standard with the 6.6l l5p duramax diesel engine, producing 470. The 2024 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.