The 2009 GMC Sierra features minor refinements and a few additions.
The Sierra is built on a stiff platform for a smooth ride and sharp handling. The GMC Sierra shares platforms with the Chevy Silverado but its exterior styling is quite different.
The 6.2-liter V8 used in the Denali is also available in regular trim Crew Cab pickups with four-wheel drive for more power and fuel consumption.
Sierra offers a choice of cab styles and bed lengths, and nine engine choices (of five sizes). There are limitations however, such as the biggest engine is limited to Crew Cabs, the 6-liter does not go in regular cab or extended cab long bed trucks, and manual transmissions are not offered.