Source: Manufacturer PR This weekend the NTT INDYCAR® SERIES will compete in The Thermal Club $1 Million Challenge, a unique non-championship race on a 17-turn, 3.067-mile road course near Palm Springs, California. Firestone is supplying more than 1,400 race tires for two days of open testing, group qualifying sessions, two heat races, and a 12-car “all-star” main event. Each NTT INDYCAR
