The track featured four different configurations for Grand Prix racing. From 1953 to 1960, the Argentine Grand Prix was held on the "No. 2" layout, clockwise for the all these years except 1954, when it was run counterclockwise. From 1971 to 1973 the race was held on the "No. 9" configuration, more or less the same as the "No. 2" configuration but for the section after Tobogan which was shortened and the Horquilla turn was made tighter and shorter. Then from 1974 to 1981 the race was run on the "No. 15" configuration, the longest and fastest layout that combined two very fast successive right and left hand corners with two long straights and a spectacular long and wide third corner (called the Curvon Salotto) into the infield section from the previous "No. 9" configuration. For the period from 1995 to 1998, the race was held on the twisty "No. 6" configuration using only the infield section with the "S" shaped "Los Mixos chicane.