It featured a 6.6 L Duramax diesel V8 engine and GMC's Quadrasteer four-wheel steering, which later became a production option on full-size pickups for the 2002 model year.

[5] Notable features included a three-panel sliding glass roof, and a reconfigurable mid-gate and window that could create a rear cargo compartment separate from the passenger area.

[4] The interior of the vehicle was surrounded by translucent green lighting, and it included sophisticated electronics such as a laptop computer integrated into the dashboard and an OnStar system.

[5] The GMC Denali XT was a concept coupe utility revealed in February 2008 at the Chicago Auto Show.

[7] The GMC Granite was a compact crossover SUV introduced at the 2010 North American International Auto Show in Detroit, Michigan.