2020 GMC Sierra HD Is a Hot Rod of a High-Tech Workhorse
12/24/19 UPDATE: This review has been updated with test results for a four-wheel-drive crew-cab Sierra HD 2500 Denali diesel model. That GMC expects more than half of its redesigned 2020 Sierra HD pickups to be sold as top-level crew-cab Denali models tells you something: Most GMC buyers prefer their heavy-duty trucks gussied up and loaded […] More