First drive: Heavy-duty diesel hauls 2020 Chevy Silverado HD to the front of the class

In the vast sweep of the country outside of cities, where the deer and the antelope play, Americans use heavy-duty trucks to tow their livelihoods and their toys. They are wealthy, they are working class; they tow fifth-wheel campers and gooseneck trailers; they tow race cars and watercraft, garage queens and showboats; they tow prized livestock...