Noise Reduction
The great thing about electric cars is the fact that the noise is a lot more reduced than a gasoline engine. Electric cars are quiet and a much better option for congested cities and areas where noise is a problem. The noise and pollution problem in California has hit a fever pitch and the electric car will change things dramatically. Tesla is leading the charge but now other automakers like Ford have jumped in as well (via ESFI).
Noise reduction is going to be one of the biggest benefits of the EV revolution. There will be a point in time when the roads are almost silent and that will be one of the best things about the EV change. In addition to the reduction in pollution, there will be less noise in the atmosphere.