That is an old Hungarian tram by Ganz Machinery Works. They began production in the 1960s, being called the Ganz CSMG with quite a lot of them being made. The one in your picture is a refurbished model - given the designation the new KCSV-7 - which were done in the 1990s. KCSV-7 stands for Korszerűsített Csuklós Villamos 7-es típus or in English, Modernized Articulated Tram Type 7.

Some of them are still in use today on the streets of Budapest, but given how old they are, will likely be retired at some point in the near future.

Here's another picture of Number 1353, running near the Danube River on Line 2 of the Budapest tram network. This particular tram line is quite nice since it runs next to the river and offers you nice views of the water and the city. The only downside is that the seats on the KCSV-2's are quite uncomfortable and despite the heating they added when refurbishing these, they still get pretty cold in the winter.