Sonoma 250 is a NASCAR O'Reilly Auto Parts Series stock-car road race held at Sonoma Raceway in Sonoma, California. The event runs on the facility’s 2.52-mile road course and features regional NASCAR teams and drivers tackling a technical, multi-turn layout that contrasts with NASCAR’s oval events. It is notable for bringing stock-car road-course competition to the Sonoma wine-country motorsports venue.
