The first batch of Sierras bore a striking resemblance to the Chevy Silverado, mechanically. For the most part, the body style of the model didn’t change much throughout the generations. Over time, GMC made minor alterations, such as cab construction, namely in length.
Some of the newer variants have enhanced engines and interior facets. The coveted six-function tailgate, which assists with loading and unloading and rapid accessing of the cargo box, is the highlight of the Sierra. It has an Infotainment and Trailering System, as well.