2013 GMC Sierra 1500 SLT 4WD SLTOdometer is 82049 miles below market average!Awards:* JD Power Initial Quality StudyReviews:* Smooth, quiet ride; comfortable seats; powerful V8 options. Source: Edmunds* If your towing needs run in the 7,000-10,000 pound range, a compact pickup isnât going to cut it; the full-size 2013 GMC Sierra, on the other hand, will. Models range from a basic Work Truck to the frugal 23-mpg Sierra Hybrid to the luxurious Denali. Source: KBB.com