This is one of the so called 1st generation metro trains. The naming is misleading as there are several batches of metro trains which are older than this. But the company Stasy has been put together from two different companies and one was talking about batches of trains and the other one about generations. This type is from the year 2000 and it is very common on metro lines 2 and 3.
Picture from the metro station Syntagma 4.6.2024 by Ilkka Siissalo.

Another picture of a 1st generation metro showing also the front of the train. These trains were built by a consortium of Siemens, Daimler-Benz and Alsthom.
Picture from the metro station Omonia 5.6.2024 by Ilkka Siissalo.

These are the so called second generation stock trains of Athens metro. They were delivered 2003-2004 and their main producer is Hyundai Rotem. In these metro trains the passengers can freely walk through the whole train. They have also the possibility to use overhead catenary 25 kV AC power so that they can continue all the way to the Athens airport. They just need to briefly stop and reboot everything at the point where the 750V DC third rail system ends, raise their overhead aerials and then they can continue as regular trains on the 25 kV line.
Picture from the metro station Omonia 4.6.2024 by Ilkka Siissalo.

Second generation metro train is stopping at the Omonia station at the city centre of Athens.
Picture from the metro station Omonia 4.6.2024 by Ilkka Siissalo.

Front of a second generation train. Only seven trains of this type have been fitted also with overhead catenary wire electric systems to run additionally under 25 kV AC to be able to run on normal train tracks to reach the Athens airport.
Picture from the metro station Omonia 4.6.2024 by Ilkka Siissalo.

Third generation metro train.These ar currently the newest metros in Athens and they have been built by the Korean company Huyndai Rotem.
Picture from the metro station Omonia 5.6.2024 by Ilkka Siissalo.

A so called 11th batch metro train running on line 1. Almost all the trains running on line 1 are completely covered by graffiti smearings as this line is the former Attiko metro, earlier Elliniko metro. Line 1 has totally different security systems so that the same trains can not be used as in the lines 2 and 3. Line 1 runs almost completely overground as it is an old railway line and therefore the trains are easy to reach for vandals who want to destroy them with spray paint. This type of trains are from 2000-2004 and were built by ADtranz, Siemens Mobily and Hellenic Shipyards.
Picture from the metro station Omonia 5.6.2024 by Ilkka Siissalo.

Athens has two tram lines, numbers 6 and 7 which are operated by Stasy, the same company that runs the metro systems of Athens. They have two types of trams: Sirio trams made by the Italian company Ansaldobreda (now bankrupt because of the lousy quality of their products) and Citadis trams made by Alstom. Tram line 7 runs totally outside the city centre, whereas line 6 reaches the metro station Syntagma which is located in the city centre. This is one of the Citadis trams. Line 6 runs from Syntagma metro station to Pikrodafni, some 18 kilometres.
Picture from Syntagma 4.6.2024 by Ilkka Siissalo.

This is one of the Ansaldobreda Sirio trams. It was running on line 6 but could not reach its end station by the metro station of Syntagma because a political demonstration by the communists was blocking the way so that the tram had to stop and turn around at this street corner, although there is not even a tram stop here.
Picture from the Zappeio Roman baths 5.6.2024 by Ilkka Siissalo.

The same Sirio tram as above, now seen more from its side.
Picture from the Zappeio Roman baths 5.6.2024 by Ilkka Siissalo.