The term 'hauler cargo' refers to the transportation of goods from one place to another. The two most common types of vehicles used for this purpose are SEMI-trucks and vans. SEMI-trucks, also known as SEMI-trailers, are large trucks that can carry large amounts of cargo and are usually used for long-distance hauling. Vans, on the other hand, are smaller vehicles that are typically used for shorter distances and for carrying smaller loads. Both types of vehicles are essential for the transportation of goods and materials.