Brandon Jones driver of the No. 33 Nexteer Chevy Camaro, shows Team Dover Airmen a spare engine stored on his racecar trailer during the Troops to Tracks program Oct. 1, 2016, at Dover International Speedway, Del. Troops to Track gives fans, with a military tie, behind-the-scenes tours at NASCAR events. (U.S. Air Force photo by Mauricio Campino)