A speeder (also known as a section car, railway motor car, putt-putt, track-maintenance car, crew car, jigger, trike, quad, trolley, inspection car, or a draisine) is a small railcar formerly used around the world by track inspectors and work crews to move quickly to and from work sites. Although slow compared to a train or car, it is called speeder because it is faster than a human-powered vehicle such as a handcar. Motorised inspection cars date back to at least 1896, when it was reported that the U.S. Daimler Motor Company created a gasoline-powered rail inspection car capable of 15 mph (24 km/h).

In the 1990s, many speeders were replaced by pickup trucks or sport utility vehicles with additional flanged wheels that could be lowered for travelling on rails, called "road–rail vehicles" or hi-rails for "highway-railroad". Speeders are collected by hobbyists, who refurbish them for excursions organized by the North American Railcar Operators Association in the U.S. and Canada and the Australian Society of Section Car Operators, Inc. in Australia.