Here's one sports company that lives life in the fast lane. Speedway Motorsports is the #2 operator of auto racing facilities in the US behind International Speedway Corporation (ISC), with eight motorsports facilities. Its tracks, including Atlanta Motor Speedway, Las Vegas Motor Speedway, and Texas Motor Speedway (Fort Worth), host a number of events sanctioned by such US racing bodies as the Indy Racing League, the National Hot Rod Association, and the World of Outlaws; however, more than 80% of the company's revenue comes from NASCAR events. Chairman and CEO Bruton Smith, head of auto dealership empire Sonic Automotive, owns about 70% of Speedway Motorsports.