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A passenger travels in a wooden carriage car on Line A of the historic subway in Buenos Aires, Argentina, Friday, Jan. 11, 2013. The almost 100-year-old "La Brugeoise" wooden carriages will stop working today and be replaced soon by modern Chinese units. The 90 Belgian cars began rolling in 1913 on Latin America's first subway line and are the oldest subway cars still operating in the world, carrying 160,000 passengers on the line daily. (AP Photo/Natacha Pisarenko)

Partial view on one of the Le Burgeoise wagons of the A Line subway, in Buenos Aires, on January 11, 2013 during the so called last ride of the historic trains. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. LEO LA VALLE/AFP/Getty Images

A child looks through the window of a wooden carriage car on the historic subway system, Line A, in Buenos Aires, Argentina, Wednesday, Jan. 2, 2013. The city government announced that the almost 100-year-old 'La Brugeoise"wooden carriages will be replaced in a short time by modern Chinese units. (AP Photo/Natacha Pisarenko)

Commuters travel in a wooden carriage car on the historic subway system, Line A, in Buenos Aires, Argentina, Wednesday, Jan. 2, 2013. The city government announced that the almost 100-year-old 'La Brugeoise"wooden carriages will be replaced in a short time by modern Chinese units. (AP Photo/Natacha Pisarenko)

Passengers take one of the Le Burgeoise wagons of the A Line subway, at Plaza de Mayo station, in Buenos Aires, on January 11, 2013 during the so called last ride of the historic trains. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. LEO LA VALLE/AFP/Getty Images

A woman poses for a picture in front of a wooden carriage car on the historic subway system in Buenos Aires, Argentina, Friday, Jan. 11, 2013. The almost 100-year-old 'La Brugeoise" wooden carriages will stop working today and be replaced soon by modern Chinese units. The 90 Belgian cars began rolling in 1913 on Latin America's first subway line and are the oldest subway cars still operating in the world, carrying 160,000 passengers on the line daily. (AP Photo/Natacha Pisarenko)

Partial view of the garage El Polvorin, in the neighborhood of Caballito, where the historics wagon La Brugoise are repaired, in Buenos Aires on January 4, 2013. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. ALEJANDRO PAGNI/AFP/Getty Images

Two historic wagons of La Brugeoise and one of the new Chinese train (C) remain parked at the garage El Polvorin, in the neighborhood of Caballito, Buenos Aires on January 4, 2013. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. ALEJANDRO PAGNI/AFP/Getty Images

A guard stands in the entrance to a wooden carriage car on the historic subway system, Line A, in Buenos Aires, Argentina, Wednesday, Jan. 2, 2013. The city government announced that the almost 100-year-old 'La Brugeoise"wooden carriages will be replaced in a short time by modern Chinese units. (AP Photo/Natacha Pisarenko)

People travel on a Le Burgeoise wagon of the A Line subway, in Buenos Aires, on January 11, 2013 during the so called last ride of the historic trains. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. LEO LA VALLE/AFP/Getty Images

Brazilian tourists take snapshots on one of the Le Burgeoise wagons of the A Line subway, at Plaza de Mayo station, in Buenos Aires, on January 11, 2013 during the so called last ride of the historic trains. The Line A will be closed betwen January 12 and March 8 following a decision by Buenos Aires city Mayor Mauricio Macri to replace the fleet with Chinese-made wagons. Line A was the first subway line to work in the southern hemisphere and its trains are among the ten oldest still working daily. The La Brugeoise wagons were constructed between 1912 and 1919 by La Brugeoise et Nicaise et Delcuve in Belgium. LEO LA VALLE/AFP/Getty Images

A lone passenger sits in a wooden carriage car on the historic subway system, Line A, in Buenos Aires, Argentina, Wednesday, Jan. 2, 2013. The city government announced that the almost 100-year-old 'La Brugeoise"wooden carriages will be replaced in a short time by modern Chinese units. (AP Photo/Natacha Pisarenko)