Dear tourists, who plan to visit Budapest for some reason and are wise enough to know that parking is a nightmare so instead of renting a car you would use public transportation, beware.
Since the government is nothing if not petty, while simultaneously having pipe dreams about hosting the Olympics, they also try to punish Budapest by discontinuing the pass valid for the city and all suburbs come march 1st.
Be aware this is not based on official opinions of engineers or planners.