Prices for many leading full-size electric cars have dropped but even a $50,000 Tesla is still harder to afford than an electric micro-car.

Two-wheeled micromobility options, especially e-kickscooters and electric cargo bikes, have become very popular in cities. Three- and four-wheeled minimobility may be the next big thing.

Automakers are voicing support of the the goal, but environmental groups are asking for the "aspiration” to be backed by tough regulations.

Projections show that urbanization, the gradual shift in residence of the human population from rural to urban areas could add another 2.5 billion people to urban areas by 2050.