There is also a new trend of taking E-bike motors and putting them into single person pedal cars. They aren't cheap, but the motor completely changes the experience. You've got a motor, lights, you're out of the rain, and parking is a doddle. Not to mention that traffic jams won't usually stop you.
These guys need a name, they aren't really electric cars. In Europe they have names like velocars. Maybe E-velo?
E-velos need to evolve. The motors are designed for bicycles. Most use the same motor I have on my E-bike. It's great, but in a vehicle you are going to want more power, and a bigger battery than an E-bike has. Other issues, like reliability, need work. This has already started. One company has come out with an E-velo called the Orca, which is crash tested, and uses a better design than the 1st gen E-velos. So it's happening, if slowly.