The practice, which originally was slated for two two-hour sessions, was rescheduled for 11 a.m.-1 p.m. Thursday. Truck practice, which had been slated to run from 8 a.m.-noon, will end at 10:55 a.m. to accommodate Sprint Cup. The Xfinity Series will stay with its original practice schedule, beginning at 2 p.m.
NASCAR added Wednesday’s practice for Sprint Cup because Saturday’s Quaker State 400 will mark the debut of a new lower-downforce rules package, which also will be used Sept. 5 in the Southern 500 at Darlington Raceway. A high-drag package will be tried at Indianapolis Motor Speedway (July 26) and Michigan International Speedway (Aug. 16).