2009 GMC Yukon Denali safety features now include a blind-spot alert system and rearview camera system that uses a 3.5-inch screen inside the rearview mirror. The Yukon Denali now sports a more powerful 6.2L V8 with 403 hp, 417 lb-ft of torque and E85 FlexFuel capability. While the V8 is paired with a 6-speed automatic transmission with tap-up/tap-down shifting, you can choose between 2WD and AWD drive trains. Fuel economy estimates are 12 mpg city/19 mpg hwy with the Denali's larger V8. The top-of-the-line Yukon Denali features a unique grille and trim, 18-inch alloy wheels, adaptive suspension with rear load-leveling, heated and cooled seats and a power-adjustable and heated steering wheel. Seating up to nine passengers, the Yukon Denali comes with a third-row 3-passenger 50/50-split bench seat. Unquestionably, the Yukon Denali is one of the most luxurious full-size SUVs on the market, with plenty of upscale options and a comfortable ride for passengers, pets, cargo, and trailers.