I've never owned a car since I live in NYC (I'm in my 40s), so the only transportation numbers I'm vaguely familiar with are with the subway. The MTA budget has gone way up over the past 50 years [1] and the cost to build the subway in NYC is hovering in the $2 billion/mile range. This is largely political and bureaucratic, as in Japan and Europe it's about $200 million - $400 million/mile. [2]

So clearly something is going wrong with the way we deal with our mass transit as well if Paris can do things for a fraction of NYC.

[1] https://nypost.com/2017/06/25/it-took-50-years-for-the-mta-t... [2] https://www.city-journal.org/article/why-cant-new-york-contr...