Maybe it's just me, but in larger cities, cars seem like an incredibly inefficient and impractical idea to transport people inside those cities. Maybe just dump the cars outside when you want to get in? Or just don't own cars and share them as a stopgap until a better solution is put in place?
One of the reasons is frequency. Depending on time of day, a subway or bus may not come for 10 minutes. A car is basically infinite frequency: when you want to go, you go right away.
The other is more direct routing. To get to my favorite bookstore, about 5 miles due north, on transit takes an hour because I either have to take the rail into the city center first and transfer (or take one of the most infrequent and slow bus routes in the system). It's maybe 35 minutes by bike or car, as long as it's not rush hour. I don't own a car, but I can't say I wouldn't be tempted some days, if I did.