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2007 GMC Sierra Extended Cab

At a Glance

Drive Types RWD, 4WD
Engines 4.8l V8
Transmissions A4

What Changed:

GMC's full-sized trucks are all new for 2007. The Sierra is offered in regular, extended and crew cab configurations with 3 bed lengths. Two-wheel and four-wheel drive versions are offered across the line. A total of 8 different engines are offered, many with cylinder deactivation technology for increased fuel economy. Flexible fuel versions allow for ethanol running. A four-speed automatic transmission is retained in all models except the range-topping Sierra Denali. The front suspension is a new coil over shock design. Solid axles are retained in the rear. Five different suspension packages are offered for various duty requirements.

Model/Trim/Package Engine MPG VjI Base Price
Sierra Extended Cab 4.8l V8 (295-bhp) A4 4WD TBD
Sierra Extended Cab 4.8l V8 (295-bhp) A4 RWD TBD