Racing vehicles are a popular form of transportation for both recreational and competitive purposes. A kart is a small, four-wheeled vehicle typically used in racing competitions. Chariots are two-wheeled, horse-drawn vehicles used in ancient times for racing and warfare. Toboggans are sleds with a curved front that are used for downhill racing. Dragsters are specialized cars designed for drag racing, which involves two cars racing side by side on a straight track. Autos are four-wheeled vehicles powered by an internal combustion engine. Sleds are vehicles with runners that are used for sliding down snow-covered hills. Gokarts are small, four-wheeled vehicles powered by an engine and used for racing. Tenspeed bicycles are two-wheeled vehicles with multiple gears used for racing.