Cadillac vs Acura battling for the lead at the TireRack .com Battle On The Bricks!!!! 🟢: Sunday, September 20 | 3:00PM ET 📺: NBC, Peacock 🌍: IMSA YouTube Live, IMSA .tv 📻: IMSA Radio #IMSA #IMS #Michelin #WeatherTech #NBCSports