The term "diesel model" refers to a type or variety of vehicle that runs on diesel fuel. Diesel engines are internal combustion engines that use compression ignition to burn fuel, and they have long been popular for their efficiency and power in commercial vehicles such as trucks and buses. In recent years, however, there has been an increase in the production and availability of passenger cars that run on diesel fuel, known as "diesel models." These vehicles offer a number of advantages over gasoline-powered cars, including better fuel efficiency, longer driving range, and increased torque for improved performance.