When does SRX on CBS return?

The formation of the series was announced on July 13, 2020, and debuted on June 12, 2021, televised on CBS on Saturday nights. The series' founders included Tony Stewart, Ray Evernham, Sandy Montag and George Pyne. SRX cars were completely designed and were in concept stage when series was founded in July 2020. The cars use naturally aspirated Ilmor V8 396 cui engines.