After soaking up the only off weekend of the season, the competitors in the NASCAR Cup Series prepare for one of the schedule’s most unique tracks in Nashville Superspeedway with this Sunday’s Ally 400 at 7 p.m. ET on NBC, PRN and SiriusXM NASCAR Radio (Channel 90). The D-shaped, concrete oval that stretches 1.33-miles, is the longest concrete surface track on the 2023 schedule and will have drivers and team dancing to find the perfect set-up in their cars for this weekend.