For cities you might look to Singapore. Many people find that owning a car is not necessary when the externalities are priced in. Singapore's Certificate of Entitlement system partly rectifies this using an open auction. The current price for a 10 year registration is about 35k USD.
Some people still own cars but at least they think twice, and often share one per family. And not having so many cars per capita means non-luxury businesses must cater to public transit users.
Singapore in general is probably the best example of what a wealthy urban benevolent dictatorship looks like. Their Single City Gallery (basically their urban planning museum) is a must visit for anyone interested in that sort of thing. Whether that's a desirable or practical model for a US city, I'll leave to others.
Singapore is not a dictatorship by any means. It is listed as a "flawed democracy" by the Economist: the same qualitative rating they give to the United States.
The Singapore government controls all the major press outlets and sues political opponents into bankruptcy. A single party has won every election since independence. The US has flaws, but in a completely different way from Singapore.
Some people still own cars but at least they think twice, and often share one per family. And not having so many cars per capita means non-luxury businesses must cater to public transit users.
https://en.wikipedia.org/wiki/Certificate_of_Entitlement