The F-350 Super Duty is a heavy-duty truck for towing or hauling heavy loads. The ride is stiffer and snappier than in the F-150, but slightly better than some of its competitors. Engines include a diesel V8, a gas V8. Stepping into the cabin is difficult because of the high floor. Integrated into the tailgate is an optional folding stepladder, which is a nice touch. Other conveniences include built-in wiring for accessories and built-in controls for proportional braking when towing a trailer. Handling is very clumsy even for a heavy-duty truck.