2020 GMC Sierra 1500
 

https://images.hgmsites.net/tmb/2020...00709055_t.gifThe 2020 GMC Sierra 1500 finds new ways to deliver on an automotive concept older than a century: the pickup truck. This year, the GMC adds to its roster a turbodiesel inline-6 that’s more refined, new trailer cameras, and a handful of added trim levels. The 2020 Sierra gets a 5.6 with an asterisk: Fuel economy ratings aren’t yet in...

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