A tracked vehicle is a type of vehicle that uses a continuous track, usually made of metal, to move. The most common type of tracked vehicle is the TANK, which is a heavily armored combat vehicle with a turret-mounted gun. Railcars are also tracked vehicles, and are used to transport goods and passengers on railway lines. A snocat is a tracked vehicle designed for use in snow, and is often used for recreational activities such as skiing and snowmobiling.