This seems off by a matter of scale; 100 years ago, the average car was the Model T; and in 1929 (94 years ago) 20% of Americans owned a car - 1 car per household.
The highway act didn't pass until 1956 (67 years ago), much less was it constructed.
Finally, we have the internationalization of the automobile and other manufactures being bigger than the US, and 100k mile cars; starting in the 70s, but Toyota didn't produce more than GM until 2021.
Consider the Roman and Medieval patterns that still persist in much of the European cityscape.. Ironically, these make for a much less expensive return to non motorized personal transportation (which was never a good fit for cities designed around animal powered vehicles). The design decisions that were common sense in the America of the Highway Act era - which are still being built out - are likely to have huge impact on future transport infrastructure decisions for much longer than a single century.