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? 
electric cars are necessary in this world but I don't know why the world economy will not support for the electric cars still now but the negative thoughts are also came about when electric cars games out the petrol and diesel was not been cell higher than they are expected it affects the world economy that's why they are not entering into this world.