There are two types of towing trucks, flatbed and winch, and it is likely that you have seen a flatbed truck on the road before. Also known as a rollback truck, it has a long empty bed at the back of the truck and is called a rollback truck. In addition to cars, other vehicles can also be secured on this bed in order to prevent theft. A hydraulically operated truck of this type is able to move its bed upwards and downwards with the help of hydraulics.