This article was originally published on www.si.com/onsi/racing-america as Previewing the NASCAR Cup Series Toyota/Save Mart 350 at Sonoma. The NASCAR Cup Series continues the In-Season Challenge with another road course, this time on the windy Sonoma Raceway carved into the hills of California's Wine Country.

The sprawling Sears Point campus has transformed into a three-day hotbed of action that concludes with the sport’s best drivers battling it out Sunday.

This Sunday, the NASCAR Cup Series heads out west to Sonoma Raceway for the 20th race of the season. That means there’s just seven races remaining before the playoffs begin.