I don't know its good or not cause this cars are more smart, but cars on gasoline are more faster, so what do you think about this? 
I am a very environmental lover so i always support those actions that can help save mother earth so absolutely consider this aa one of the best innovative moves of human towards our environment, imagine how wr can be smoke free world if all of our transport system will provide these cars than the dominant engine cars?Yeah, you are right, in this wise we could save our earth's environment from typical ways. But the problem is these type of things like electric cars are not available in very country, and the main problem is only few people have knowledge about them, the lack of information wise people don't use them.