This problem might get solved for self-driving vehicles by simply banishing non-autonomous vehicles (including bicycles and pedestrians) from the roads.
It won't happen overnight, and probably take anywhere between 30-50 years, but it's definitely possible in the long term.
This is why the only source of auto inflation is by adding more features to the car. I don't see any reason why this would change in the future.
For EVs, wait until cheap Chinese EVs flood the US market.
Look at what the automobile industry did with "jaywalking" and removal of street cars.