For three upcoming tracks NASCAR adjusts cup aero rules Unlisted Video

According to Autosport.com, "NASCAR has decided to alter the Cup Series aero package for three upcoming tracks after reviewing the performance of its new rules in 2019 so far." John Probst, NASCAR's senior vice president of innovation and racing development, said, "When we originally looked at which elements of the package to race at each track, we wanted to err on the side of caution at a few tracks where there may be some brake cooling concerns."