Used GMC Sierra 1500 2015 Automatic

Power comes from GM's latest menu of improved truck engines. All employ cylinder deactivation, direct fuel injection, and continuously variable valve timing. The base 4.3-liter V-6 is worth a look for all but serious and frequent haulers. The step up is a 5.3-liter V-8 making 355 horsepower, which can handle almost any towing task up to 11,000 pounds. A 6.2-liter V-8 producing 420 horsepower and 450 lb-ft of torque is also available, sacrificing a little bit of fuel economy for all-out towing and hauling capability. Today's full-size trucks deliver the kinds of payload, acceleration, and towing that heavy-duty trucks did just a couple of decades ago.

Recalibrating the powertrain needs of truck drivers was inevitable, and that was part of the 2014 Sierra refresh. The latest powertrain lineup has dropped some of the former stragglers, leaving behind a trio of engines that cover everyone's needs. The suspension and steering improve responsiveness compared to the last-generation truck while also netting minor improvements in ride quality. All Sierras come with the mandatory airbags and stability control. The StabiliTrak setup incorporates trailer-sway control to mitigate the wagging motion that can be induced when towing, especially in high winds. Hill-start assist is standard, and maintains position for a couple of seconds when the Sierra launches on a grade.