CARFAX One-Owner. Clean CARFAX. Summit White 2012 GMC Sierra 1500 Work Truck RWD 4-Speed Automatic with Overdrive Vortec 4.3L V6 MPI 4-Speed Automatic with Overdrive, dark titanium Cloth, Air Conditioning, Speed control. Reviews: * Smooth, quiet ride; comfortable seats; powerful V8 options. Source: Edmunds The North family dealership was established in 1965 and continues to offer reliable used vehicles at a fair price. All of our cars and trucks undergo a rigorous inspection by certified technicians and include a Carfax report.