A freight car is a type of railway vehicle designed to transport goods and materials. Unlike passenger cars, which carry people, freight cars are built to hold various types of cargo, including bulk materials, containers, and vehicles. They come in different designs, such as flatcars, boxcars, and tank cars, each suited for specific types of freight. Freight cars are an essential part of the rail transport system, enabling efficient movement of goods over long distances. They are typically pulled by locomotives and can be found on both freight-only and mixed-use rail lines, contributing significantly to the economy by facilitating trade and logistics.