"Until that happens, they will just be a curiosity, like horseless carriages were 100 years ago."
So how many petrol stations were around 100 years ago?
As it is now, the manufacturers are just barely able to get 1.5 times the miles per gallon they did 100 years ago (provided you could find a couple hundred miles of smooth road then) altho you can travel twice as fast now.
I personally applaud McD's for at least making an attempt at helping get people off the Oil Barron's treadmill but alas most electricity is produced by burning a fossil fuel of some from and the distribution of it is mostly controlled by the government where it is produced which inevitable will end up with extra taxes (even for your house) as petrol sales decrease for the "greener?" electricity instead.
I see two problems holding E-vehicles back.
1 - the propulsion technology (motor) is over 100 years old. Nicolas Tesla invented the induction motor to more efficiently use the AC he and Westinghouse were then producing (with only minor changes to the original production facility). The DC from the battery pack has to be converted to AC for use now.
2 - the vehicle itself has to be robust enough to pass all the government safety requirements created to protect the occupant(s) which adds weight thereby reducing efficiency/range even further.
Mines the one with the battery pack!