Strong spectator figures, media interest and television coverage of endurance racing's Triple Crown events (24 Hours of Daytona, 12 Hours of Sebring, and 24 Hours of Le Mans) has led to the establishment of several endurance racing series — thereby giving teams the opportunity of running their cars in Championship events throughout the year.
As fortes cifras de espectadores, o interese dos medios de comunicación e a cobertura televisiva dos eventos da Tripla Coroa de carreiras de resistencia (24 Horas de Daytona, 12 Horas de Sebring e 24 Horas de Le Mans) levaron ao establecemento de varias series de carreiras de resistencia, proporcionando aos equipos a oportunidade de correr cos seus coches nos eventos do campionato durante todo o ano.