The Autodromo Internazionale Enzo e Dino Ferrari (commonly known as Imola) is a permanent racing circuit which held the 1980 Italian Grand Prix and all subsequent runnings of the San Marino Grand Prix until 2006. It is currently undergoing redevelopments with the aim of returning it to the Formula One calendar. The circuit is notorious as the home of the 1994 San Marino Grand Prix during which Roland Ratzenberger and Ayrton Senna were both killed.