A non-championship Formula One race was held at Buenos Aires in 1971, won by Chris Amon over two heats. In the Argentine Grand Prix returned to the World Championship, with Carlos Reutemann emerging as the new home favorite. The variant used for these two years was similar to the one used before, except the straight leading into the hairpin after the Toboggan esses was shortened. Reutemann took pole position in his world championship debut, becoming only the second driver to achieve this feat. The race was won by world champion Jackie Stewart. 1973 saw Emerson Fittipaldi take victory at the last part of the race from Frenchman François Cevert.