The GEICO 500 is a NASCAR Cup Series stock car race held at the Talladega Superspeedway in Lincoln, Alabama. The race is usually held in April or May. The 1997 event stands as the fastest NASCAR race to date ever run with an average speed of 188.354 miles per hour (303.126 km/h) and was the first race at Talladega Superspeedway that was not interrupted by a caution period.