The 2008 Sierra Denali is the most luxurious of the Sierra line up. The Denali is powered by a 403bhp 8 cylinder engine that is mated to a 6 speed automatic transmission that sends power to all 4 wheels allowing 18 mpg on the highway. The denali has leather seating, heated front seats, bose sound system, navigation, back up sensors, and rear entertainment package. This particular truck has 22in Giovanna wheels. This is a really nice truck for the money and will not be here for long. Stop by for your test drive today.