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NASCAR Xfinity Series was the last series in which Joe Nemechek competed. Nemechek, a veteran NASCAR driver, made his final start in the Xfinity Series in 2015 at the age of 53. He had a successful career in NASCAR, competing in various series including the Cup Series, Xfinity Series, and Truck Series. Nemechek is known for his longevity and versatility as a driver.