Smith had outbid ISC by $15 million to make a total $215 million purchase .
In 1999 SMI outbid rival International Speedway Corporation ( ISC ) to purchase Las Vegas Motor Speedway .
Smith had outbid ISC by $15 million to make a total $215 million purchase .
In 1999 SMI outbid rival International Speedway Corporation ( ISC ) to purchase Las Vegas Motor Speedway .