2021 Gmc Sierra 1500 Duramax Exterior Redesign, Automatic Engine – By using the new age group of the particular pickup truck out for 2021 year, the 2021 GMC Sierra 1500 is usually not getting lots of up-dates. The approaching model may well not have as several choices as we will like, as a result this might be a section where by the vehicle could possibly increase. Latest features and probably additional trim degrees are all we are able to receive the 2021 model.