The Autódromo Potosino is a half-mile paved oval located near the city of San Luis Potosí in Mexico. The track was opened in 1983 as a road course. It was built by Promotodo, an enterprise owned by Michel Jourdain, Sr., which organized the defunct Marlboro Cup, which was arguably the most important racing series in the country at that time. In 2005, after several years of not being used, the track was rebuilt as a half-mile oval to host NASCAR events. The track is used primarily by the NASCAR Corona Series and T4 Series. A few local events are also held.