Vortec 5.3L V8 SPI VVT Flex Fuel, 6-Speed Automatic, 4WD, Clean One Owner Carfax, and Local Trade. Success starts with Car Hunterz! This outstanding 2010 GMC Sierra 1500 is the one-owner truck you have been searching for. Consumer Guide named the Sierra 1500 a 2010 Recommended Large Pickup! This Sierra SLE is still a pretty special truck, showing off the superior ride and handling that have earned it accolades from pretty much every reviewer who got behind the wheel. The drivability is good enough to be a capable commuting vehicle for someone who wants a pickup on the weekend for hauling toys or projects.