Cars, or more specifically the way "we"* tend to (mis)use them (single occupancy mode) are an exponential major world problem.

* Full disclosure: I ride bicycles and only plan to ever live in localities where I won't need to purchase an entire car.

More cars, or even car-friendly tech will never be the solution for the issue of too many cars. See also "induced demand": https://en.wikipedia.org/wiki/Induced_demand

https://www.mrmoneymustache.com/2011/10/06/the-true-cost-of-...

https://carbusters.org/2011/09/08/are-cars-really-our-greate...