I think electric cars will only really flourish once self driving vehicles become more practical and common. That convergence, along with civilian drones, will expand and improve our options for transport immensely, while also improving efficiency dramatically. It's still a long way to go, but the technologies to make it happen exists today. It's going to be more of an infrastructure change, for example to provide specially marked routes and stopping points for self driving vehicles. The benefits of implementing this is going to take a while for people to realise, but doing so will be comparable or cheaper than current mass transit projects, while offering significantly more flexibility regarding routes and capacity. It will allow people to improve the mobility they have with their own cars now, while improving efficiency so people can live better in and around bigger cities.
For example, instead of bus routes, you can have a car come to pick you up at or near home at a scheduled time, or on demand, to take you to the train station to make a scheduled train on time. When the train arrives in the city you can have a similar car take you to the office. The cars can manage stopping to recharge by itself. The car routes can be updated and optimised based on demand or congestion, new routes can be added easier than bus routes. Software can manage your individual trips so you only have to make decisions based on time and cost. Deliveries can be done with automated cars and flying drones, and this can be adapted much quicker based on demand.