Speedway Motorsports, Inc. or SMI is an American corporation that owns and manages racing facilities that host NASCAR, IZOD IndyCar Series, NHRA, WoO other racing series. The company's headquarters are located at Charlotte Motor Speedway, in the suburbs of Charlotte, NC. SMI owns nine racing facilities with a combined seating capacity of approximately 885,000. In addition to operating racetracks, SMI owns PRN, U.S. Legends Cars International, and co-owns Motorsports Authentics. - Source: Wikipedia
