* Based on opinions and should be considered as general guidance only.
- Reliability (3)The powertrain is generally robust, but this first year of the GMT900 platform is known for minor electrical issues and interior trim durability concerns.
- Maintenance (3)Parts are widely available and relatively inexpensive, but high fuel consumption and potential repairs to the Autoride suspension can increase long-term costs.
- Technology (3)While it featured cutting-edge tech for 2007 like a power liftgate and rear-seat DVD system, the navigation interface and lack of modern connectivity show their age.
- Comfort (5)With its extended wheelbase and Denali-specific trim, the ride is exceptionally smooth and the cabin remains whisper-quiet even at highway speeds.
- Dynamics (4)The 380-hp 6.2L V8 provides strong, linear acceleration that belies its massive size, though its heavy curb weight is evident during emergency braking and tight cornering.