with each screen measuring by . BMS has announced a new event called the Short Track U.S. Nationals in May 2017. The event will feature five classes of cars that are featured at local weekly tracks: Super Late Models, Pro (Crate) Late Models, Southern Modifieds, Late Model Stock, Street Stocks, and Compact (4 cylinder) cars. Champion Racing Association will be the lead sanctioning body of the event. The Super Late Model class is co-sanctioned with CRA Super Series, CARS Super Late Model Tour, and Southern Super Series cars. Every year since 2016, PJ1 TrackBite is applied on the bottom of the track in an attempt to restore racing in the bottom groove that has been lost with changes to the banking in 2007 and 2012. Bristol was again converted to a dirt track in the spring of 2021. The Bristol Dirt Nationals super late model race was held on March 15–20; the NASCAR Cup Series Food City Dirt Race and NASCAR Truck Series Pinty's Dirt Truck Race will be held on March 29; the World of Outlaws Late Model Series Bristol Bash will be held on April 8–10; and the World of Outlaws Sprint Car Series Bristol Throwdown will be held on April 22–24.World of Outlaws to race Sprints, Late Models at Bristol Motor Speedway in 2021 - Dan Beaver, NBC Sports, 22 December 2020 Both World of Outlaws events were dropped after the 2022 edition, whereas the Bristol Dirt Nationals was rebranded the Bristol Dirt Showcase for the 2023 edition. Bristol Dragway In addition to the speedway, there is a dragstrip that hosts an annual NHRA event each year, the NHRA Thunder Valley Nationals. Prior to its status as an NHRA national event track, the Bristol Dragway was the flagship strip of the rival IHRA organization; the strip's owner Larry Carrier formed the IHRA at the Bristol Dragway in November 1970. The relationship ended when Bruton Smith took over its ownership. The dragstrip has long been nicknamed Thunder Valley due to its location and surrounding scenery. Bristol Dragway also hosts the Eastern Conference Finals for the Summit Jr. Drag Racing League, the AMRA Thunder Valley Nitro Nationals, the Fall Fling, World Footbrake Challenge, and numerous bracket racing and street car events throughout the year. Non-motorsports usage In the fall of 2002, students from Sullivan East High School in Bluff City, Tennessee, attended the skyboxes at the Speedway as temporary