In 2004, the GMC Sierra 1500 and the Chevrolet Silverado 1500 became the first pickup trucks produced with a hybrid powerplant. For 2007, the gasoline/electric powertrain setup entered its fourth and final year of production known as the Sierra 1500 Sierra Classic Hybrid based on the outgoing GMT800 chassis. Available only as an extended cab model, the 2007 GMC Sierra 1500 Classic Hybrid pickup truck could be ordered with either rear-wheel drive or four-wheel drive.
Conventional power for the Sierra 1500 Classic Hybrid is arrived from a 5.3-liter V-8 engine generating 295 horsepower and 335 pound-feet of torque. Operating on a 42-volt electrical system, the hybrid technology is equipped with a 14-kilowatt electric motor, three extra lead-acid automobile batteries mounted under the vehicle’s rear seat. At a stop, the electric motor automatically shuts off and reengages the gasoline engine allowing it to conserve fuel. This practice is stated to increase fuel economy by ten percent.
With the rear-wheel drive Sierra 1500 Classic Hybrid obtaining 18 miles per gallon city and 21 miles per gallon highway. Equipped with four 120-volt power outlets, the 2007 GMC Sierra 1500 Classic Hybrid allows a someone to draw electricity from the vehicle’s battery pack to operate lights and power tools. Regenerative four-wheel disc brakes with anti-lock braking system, 16-inch aluminum wheels, dual-zone climate control, heated mirrors and an cabin seating up to six passengers is found standard on the 2007 GMC Sierra 1500 Classic Hybrid. GMC reintroduced a hybrid version of the Sierra 1500 as part of the new GMT900 platform model using different technology.