Founded in 1956, the United States Auto Club (USAC) has been a cornerstone of American motorsports for over six decades. As a premier motorsport sanctioning body, USAC is dedicated to fostering a vibrant community for racing enthusiasts, professional drivers, and teams across the United States. Our journey began with a commitment to promote fair competition, innovation, and excellence in motorsports, and these values continue to drive us today.
United States Auto Club
Porsche Sprint Challenge Official Partner.
