C141965HSTS. On Thursday Oct. 31, 2019, Tony Stewart strapped into his #14 Haas Automation Ford Mustang to make a demonstration run on the 3.426-mile, 20-turn, Circuit of the Americas (COTA) track in Austin, Texas. The three-time NASCAR Champion showed Haas F1 Team drivers Romain Grosjean and Kevin Magnussen how to wheel a 3,200-pound racecar around America’s only purpose-built Formula One track.