(Words and Photos by Charlene Felton, ChumpStaffer) – The Optima Batteries ChumpCar World Series (www.chumpcar.com), stormed their way into Thunderhill Raceway Park located in Willows, CA just 125 miles north of San Francisco in the Sacramento Valley. CLICK HERE TO SEE ALL OF OUR PHOTOS FROM THE RECENT CHUMPCAR THUNDERHILL TWIN SEVEN HOUR ENDURANCE RACES […]
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