2020 GMC Sierra 2500 AT4 Diesel Review: Rugged But Unrefined A tough truck that could use a few more features. By Jeff Perez New Car Reviews - Mar 13 2020 -
2020 GMC Sierra HD Diesel First Drive: Big Daddy The all-new Sierra HD is as capable as it is handsome. By Greg Fink First Drives - Aug 25 2019 -
2017 GMC Sierra 2500 Denali HD First Drive: Power, power, power A stronger yet cleaner-burning diesel engine provides even more capability for the heavy-duty truck. By Jake Holmes First Drives - Feb 21 2017 -
