Contrarreloj is the second album of Enanitos Verdes published on 1986. Originally released in 1986, Contra Reloj was Los Enanitos Verdes second effort but the first that the group recorded for CBS (now Sony). Produced by Andrés Calamaro, the album is a good [according to whom?] collection of simple pop/rock songs and probably one of the strongest albums that the band has ever recorded[neutrality is disputed]. It's like a greatest-hits collection in itself: "La Muralla Verde," "Conciencia Contra Reloj," "Cada Vez Que Digo Adiós," and "Simulacro de Tensión" were massive hits at the time and still are covered by the band in its shows[according to whom?].