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TireRack.com ChampCar Endurance Series National Championship at Sonoma Raceway - TireRack.com ChampCar Endurance Series®
This weekend marks the return of the TireRack.com ChampCar Endurance Series National Championship. Racing the famed Sonoma Raceway in Northern California will be 34 cars with 19 cars competing for the 2020 National Championship.