An automobile is the item or the object that is used for the commuting purposes. The vehicle is the one where the owner of the vehicle will be using it for various purposes like the transportation of goods from one place to another. These vehicles can also be used where the people can move from one place to another. The vehicles are the most important fragment of the human life which has reduced the traveling time of human beings by a large margin. The invention of automobiles is a very important milestone in this century. The question asked here is what those hard top covers are called on the back of trucks. The hardtop covers over the truck is usually used to cover the open space of the truck. The main duty of these hardtop is to provide shelter for the items that are carried at the back of the truck.