NASCAR's Toyota/Save Mart 350 isn't only a month later this year, it's also part of the lucrative new In-Season Challenge and will be covered by different networks.

The NASCAR Xfinity Series returns to Sonoma Raceway for back-to-back weeks with a road-course showdown in wine country (Sat., 4:30 p.m. ET, The CW, PRN Radio, SiriusXM NASCAR Radio). ENTRY LISTS: Cup Series | Xfinity Series Fresh off a weekend sweep on the streets of Chicago,

The NASCAR Cup Series tackles its second consecutive road course event, heading west to California's Sonoma Raceway for the Toyota/Save Mart 350. Find out how t