The GMC Sierra 2500HD is a great truck with all of the look and feel of a luxury vehicle. When you are looking for a new truck, the Sierra is a great buy. It uses flex-fuel gasoline and has a gas tank that is 36 gallons. It features seating for three total riders and has a 6-speed automatic transmission and rear-wheel drive. This GMC Sierra has a wheelbase of 133.6 inches, overhead valves, a turning circle of 45.9 feet, and 360 horsepowers at 5400 RPMs. The vehicle features short and long arm front suspension, independent front suspension, and cruise control. For music lovers, it has four premium speakers, USB and memory card outlets and is pre-wired for mobile phones. The GMC Sierra 2500HD has front reading lights as well along with a trip computer and a low fuel warning. It is great for city cruising and long road trips.