International Speedway Corporation was diversified across the racing industry. The company owned and operated (1) Motor Racing Network, Inc. (MRN Radio) the nation's largest independent sports radio network, (2) DAYTONA USA, the official tourist attraction of NASCAR, and (3) Americrown and Motorsports International, providers of catering services, food and beverage concessions, and producers and marketers of motor sports merchandise. Each of the company's segments had seen a surge in growth commensurate with the popularity of the sport.