Racing Circuit is a term used to describe a track or course designed for motor racing. It typically consists of two straights and several curves, and may be either a LAP or an OVAL shape. The most popular form of Racing Circuit is NASCAR, which is an American stock car racing series. LAP is a three letter word that refers to the completion of a single circuit of a race track. OVAL is a four letter word that describes a track or course with two straights and two 180 degree turns. NASCAR is a six letter word that stands for the National Association for Stock Car Auto Racing.