Ram 2500 models are built to handle the most extreme towing tasks, while the 3500 models are aimed at commercial use and marketed towards ranchers and construction crews. With the diesel model’s gains in fuel efficiency and maintenance-related improvements, running costs will be down compared to the 2018 models. Even compared to other automakers’ heavy-duty trucks, the Ram 2500 and 3500 HD models have some of the best-appointed, most luxurious and most attractive interiors available in any pickup.