A truck, also known as a lorry, is a type of motor vehicle specifically designed for transporting goods, carrying specialized loads, or performing various practical tasks. Trucks come in a wide range of sizes, power levels, and designs, but most commonly have a body-on-frame structure, where the cabin is separate from the cargo area. Smaller trucks can be mechanically similar to certain cars. Commercial trucks can be quite large and powerful, and they can be equipped with specialized tools and equipment, such as refuse collection vehicles, fire engines, concrete mixers, and suction excavators.