Iowa Speedway is a 7/8-mile paved oval motor racing track in Newton, Iowa, United States, approximately 30 mi east of Des Moines. It has over 25,000 permanent seats as well as a unique multi-tiered RV viewing area along the backstretch. The premiere event of the track is the Hy-Vee IndyCar Race Weekend held yearly in July since its inaugural runnin…Iowa Speedway is a 7/8-mile paved oval motor racing track in Newton, Iowa, United States, approximately 30 mi east of Des Moines. It has over 25,000 permanent seats as well as a unique multi-tiered RV viewing area along the backstretch. The premiere event of the track is the Hy-Vee IndyCar Race Weekend held yearly in July since its inaugural running in 2007.