For 2017, the GMC Sierra 2500HD and 3500HD are now offered with a more potent Duramax 6.6-liter turbocharged diesel engine. The upgraded diesel engine paired with the 2017 Sierra HD generates 445 ...

It’s important to carefully check the trims of the car you’re interested in to make sure that you’re getting the features you want, and aren’t overpaying for those you don’t want.