This Thursday, February 3, the state-owned Subterráneos de Buenos Aires (SBASE) will auction two complete trains of Siemens-Schuckert-O&K cars.In this case, it is about ten wagons that were modernized between the end of the 2000s and the beginning of the 2010s by Emepa and Alstom.These reformed units were used as a "wildcard fleet" in the middle of the last decade until the arrival of zero kilometer formations, circulating first on line A (2013-2015) and then on line H (2015-2016).Although it was planned to be incorporated into line E, the project was later shelved and since mid-2016 the cars have been out of service and stored in the "Taller Magaldi", a warehouse in Barracas that SBASE rents to Grupo Clarín .The cars to be auctioned off are the R1, M6, M21, M34, R34, M45, M40, R40, R45 and R54.Each unit goes on sale with a base price of between $20,000 and up to $25,000 (without VAT): In some cases, the bid raised prices up to $90,000 for a unit.The auction will be in charge of the specialized firm Narváez Bid, according to the site enelSubte.Thursday's auction will not be the first time that SBASE has used this methodology to dispose of railway material that it no longer uses.Cars that were once auctioned include two La Brugeoise (not included in the protection law), numerous Siemens in original configuration, several CAF-GEE, some Mitsubishi Eidan 500s and a few Fiat Materfers.It should be noted that the Siemens-Schuckert-O&K trains were originally commissioned by Compañía Hispano Argentina de Obras Públicas y Finanzas (CHADOPyF) in the 1930s. Most of the units were manufactured in Germany in the 1930s and 1940s, although a few are from national industry and date from the 1950s (including two -R45 and R54- of which are now up for auction).Buenos Aires subways: the repowering works of the service advanceThe Siemens were characterized by being the only trains in the network that have circulated on all the catenary lines, 1500 V and tram gauge - except on the B-.In any case, they spent most of their career on lines C, D and E of the Subway, although later they also did so on lines A (only refurbished) and H (in both the original and refurbished versions).It should be remembered that the Siemens train reform project dates back to the times of Ricardo Jaime at the head of the National Transportation Secretariat, on which the Subway then depended.Under national management, the project progressed slowly and only a prototype formation was built.With the transfer of the Subway to the City, in 2012, the contract passed to SBASE, which decided to continue it to alleviate the lack of rolling stock.At the same time, the Buenos Aires company decided to scrap the CAF-GEE reform project, which presented lower levels of progress: its unfinished prototypes were finished off in 2017.In 2019, as published by that portal, SBASE and the Sociedad Operadora Ferroviaria Sociedad del Estado (Sofse), analyzed the possibility that some of these refurbished trains would be launched on the Maipú – Delta branch of the Miter line (“Tren de la Costa"), but the project was later scrapped.It was recently announced that this line will receive new Chinese-made rolling stock.