Marty Snider, Nate Ryan and Jeff Burton break down NASCAR’s rule changes, preview the upcoming Ally 400 Cup Series Race in Nashville and welcome guests Austin Dillon and Brad Daugherty. #NBCSports #NASCARAmericaMotormouths » Subscribe to Motorsports on NBC: » Get…

Jeff Burton, Marty Snider, and Nate Ryan examine Martin Truex Jr.’s victory at Phoenix, unpack recent comments from Kevin Harvick’s crew chief Rodney Childers, preview the NASCAR Cup Series race at Atlanta Motor Speedway, as well as the IMSA 12…