Because the medium-duty segment (Classes 4-6) is so diverse, with a wide range of duty cycles and applications, from urban delivery to vocational work, the changes on new models made from year to year are also diverse. They are the ultimate role players, with some trucks out there to meet the niche needs of any fleet.
For 2021, Daimler and Paccar have begun to add electrified powertrains to address impending regulations and customer demand, while Ford and Isuzu have introduced new gasoline engines. Meanwhile, the demand for medium-duty trucks in general, which typically do not require a commercial driver's license, has motivated Mack to come back into the segment for the first time in almost 20 years. There is no telling how this decade will play out, as it's off to a wild start due to politics and the pandemic, but it's likely there will be a bevy of medium-duty trucks available to meet those changes.
Click through the slideshow to take a look at the most significant changes from the leading medium-duty OEMs.