Part 8 of 13 – Nationwide 2010 – Charlotte, Tech-Net Auto Service 300 30 May 2010 at the Charlotte Motor Speedway the Tech-Net Auto Service 300 was held, NASCAR Nationwide Series regulars will battle against various NASCAR Sprint Cup Series drivers in this 300-mile showdown. The TECH-NET Auto Service 300 powered by CARQUEST is an opportunity for fans to see great racing action