Miranda Arnold, 16, left, and her older sister, Haley, 18, started racing with all-terrain vehicles, graduated to the hobby stock division and now are burning up the track with 360-powered, winged-sprint cars.
Miranda Arnold, left, and Haley Arnold, right, talk about the setup on their cars with George Lasoski on July 9 at Knoxville Speedway in Knoxville, Iowa. Lasoski, the father of World of Outlaws driver Danny Lasoski, shares his experiences with the sisters
Haley Arnold negotiates a turn July 9 at Knoxville Raceway in Knoxville Iowa. She finished 16th in the 360 sprints feature race.