Gmc Denali 2024 Ultimate 2024. There was a subset of buyers that needed a truck’s capability, but still wanted the posh suppleness of a luxury sedan. Detailed specs and features for the 2024 gmc sierra 3500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

 — powertrain and fuel economy: See pricing for the new 2024 gmc sierra 1500 crew cab denali ultimate.