The 2009 GMC Sierra, which is due to arrive in limited availability in the fall of 2008, is an exciting new entry to the hybrid vehicle market. Looking identical to the 2008 model and to the Chevrolet Silverado, the GMC Sierra is a full size pickup truck that is environmentally and wallet friendly. When the Sierras arrive on the showroom floors in late 2008 to early 2009, they will usher in a new era of pickup truck development; which the manufactures hope will boost the falling sales trends.

The trucks boast increase in towing capacity, sound levels while driving and an increase in miles per gallon (MPG). The decrease in sound levels is a direct result from having less engine noise from the hybrid system while in use and the truck’s active fuel management system that is already in use in many General Motors vehicles.

The active fuel management system shuts off fuel to the vehicle’s cylinders once a certain speed is reached and turns the fuel back on if more horsepower or speed is needed. This eliminates some of the noise inside the cabin of the truck and also improves MPG by using the cylinders that are not needed. Read the rest of this entry »