>>2043257
Don't really know; they've existed for a long time, though, first trams here were still horse pulled.
Trolleybuses are sadly gone everywhere, though; instead of upgrading them with batteries to obviate their major issue (being paralyzed in the middle of traffic by a sudden loss of power), they pretty much just got rid of them everywhere after claiming they were more expensive to operate than buses; then they went on and started replacing buses with muh fucking e-buses. Because those are so inexpensive, right...?
Trams are also sadly long gone, other than in Lisbon or some mostly tourist line in Porto.
Now they're pushing hard cancerous metrobuses, screwing with everyones lives, because muh phony globowarming.