Racing sled is a term used to describe a type of sled used for racing. The two most common types of racing sleds are LUGE, which has four letters, and TOBOGGAN, which has eight letters. LUGE is a type of sled that is ridden in a prone or supine position and is used mainly for racing down an ice track. TOBOGGAN is a type of sled that is ridden in a seated position and is used mainly for recreational sliding down snow-covered hills.