Well people, I leave this link to identify Argentine buses. To do so, in the "Empresa" box, put the company name and in "Servicio", put in "Todos".
The database service identified by brand, model, license plate, year, number of seats and bodywork. Very interesting.
The link is:
http://www.cnrt.gov.ar/bases/fichagasoil.asp
The CNRT is: ComisiĆ³n Nacional de RegulaciĆ³n del Transporte de Argentina (National Commission for Regulation of Transport of Argentina), it depends on the transport secretary of the nation.
* Can use the Google Translator to translate the page if you do not understand Spanish.
Many thanks and best regards