Drag racing is a competition in which vehicles compete to be the first to cross a set finish line, usually from a standing start, and in a straight line. Most drag races begin with a standing (stationary) start and are just 1/4 mile long (1,320 ft (400 m)). Elapsed times range between mid-4 seconds to 23 seconds, with finishing speeds (trap speeds) ranging from 60 mph to over 330 mph (530 km/h), depending upon the type of vehicle. Faster vehicles need a parachute (mandated by rules) to slow down.