Equipe Rapide Sports Car Club was formed in 1967 and incorporated in 1995. Equipe Rapide frequently goes by its initials ER. Most of ER’s members live in the Dallas-Fort Worth area. ER is a group of enthusiastic people who enjoy getting together for social activities and sports car events. The primary emphasis is on autocross and solo events. The Challenge Cup Series & Rapide PAX Series are the official competition season series of events.