The Big Machine Music City Grand Prix, September 14 and 15 at the Nashville Superspeedway! Experience the thrill and adrenaline of IndyCar racing plus a two-day music festival starring Riley Green, Daughtry, Gary LeVox and many more! It’s fun for the entire family – and not just for racing fans! Celebrate the best of IndyCar and the best of Nashville at The Big Machine Music City Grand Prix