If you’re an Xfinity fan, you already know that the series isn’t just the “middle child” of NASCAR. Nope, it’s the proving ground for future Cup stars and the breeding ground for some of the most chaotic short-track racing on the planet.

CONCORD N.C. - The NASCAR Cup Series returns to Iowa Speedway this weekend for 350 miles of beating and banging. Last year marked the first time that stock car racing's premier series raced on the 0.875-mile oval. For the second consecutive year, the grandstands have sold out for the main event.