An electric kart, also known as an e-car or eco-friendly kart, is a kart with an integrated electric motor which can be used for propulsion. There are a great variety of e-car available worldwide, from e-kart that only have a small motor. E-kart use rechargeable batteries and the lighter varieties can travel up to 25 to 32 km/h (16 to 20 mph), depending on the laws of the country in which they are sold, while the more high-powered varieties can often do in excess of 45 km/h (28 mph).