A speeder (also known as railway motor car, putt-putt, track-maintenance car, crew car, jigger, trike, quad, trolley, inspection car) is a maintenance of way motorized vehicle formerly used on railroads by track inspectors and work crews to move quickly to and from work sites. Although it is slow compared to a train or car, it is called a speeder because it is faster than a human-powered vehicle such as a handcar.