GMC’s decision to only offer the Denali Ultimate as a Crew Cab with the short box makes sense, as this is the type of truck that should prioritize passengers over raw hauling capacity. This is the truck that the supervisor drives to the construction site, not the one that carries brick and mortar all day long.
Rear seat legroom is extremely generous with over 43 inches of legroom and the amenities include heatedrear seats, under-seat storage, in-seat storage, USB ports, and many cupholders. Admittedly, the Ram 1500 packs about two more inches of legroom, the ability to recline the rear seats, and the option for ventilated rear seats. If you want the most luxurious back seat in the segment, the Ram wins on that front.
The Sierra’s short bed measures 69.9 inches with 62.9 cubic feet of storage space. This compares favorably to the competition from Ford and Ram. The Ford F-150 shortest bed measures 67.1 inches with only 52.8 cubes while the Ram 1500’s shortest option is 67.4 inches with 53.9 cubes. On the Denali Ultimate, GMC’s MultiPro tailgate comes standard, including a built-in Kicker audio system for tailgate parties.