[2] Smith qualified twelfth for his first Winston Cup Series start at the 1990 DieHard 500 at Talladega Superspeedway;[1] during the race he was involved in a pit road mishap when he lost control of his car and hit several crew members for Tracy Leslie's team.
[3] In 1991, Chad Knaus entered NASCAR competition as a crew member for Smith's team;[4] Smith also introduced Interstate Batteries into NASCAR as a sponsor before the company moved to Joe Gibbs Racing.
[8] Smith hit the wall almost head-on, suffering a basilar skull fracture and massive blood loss;[9] his driver's suit, which was white before the race, was soaked in blood as he was rushed to Caraway Methodist Medical Center in critical condition.
[9] As a result of this and other wrecks, Talladega installed catch fencing along the entire track, not just where spectator stands were present;[12] in addition, following the 1993 season NASCAR mandated cars be fitted with roof flaps in an attempt to stop flips during accidents.
[14] Smith's final racing start came at the 2008 Snowball Derby; he would crash after 120 laps, finishing 33rd.