Kart racing or Karting is a variant of open-wheeler motor sport with simple, small four-wheeled vehicles called karts, go-karts, or gearbox/shifter karts depending on the design. They are usually raced on scaled-down circuits. Karting is commonly perceived as the stepping stone to the higher and more expensive ranks of motorsports.
Art Ingels is generally accepted to be the father of karting. A veteran hot rodder and a race car builder at Kurtis Kraft, he built the first kart in Southern California in 1956. Karting has rapidly spread to other countries, it currently has a large following in Europe.
Karts vary in speed and some can reach speeds exceding 160 mph (Superkart). A Formula A kart, with a 100 cc 2 stroke engine and an overall weight including the driver of 150 kilograms, can accelerate from 0-60 mph in under 4.5 seconds, and has a top speed of 85 mph (140 km/h). It takes a little more than 3 seconds to go from 0 to 60 mph with a 125 cc shifter kart (6 gears), with a top speed of 115 mph (185 km/h) on long circuits.