None of your links address the elephant in the room, that would be BATTERIES
Trains run on electricity, but that electricity is not from batteries? How come? If electric cars are so efficient how come we dont have battery powered trains?
Electricity? Yes, electric motors are extremely efficient. What is not efficient is thousands of batteries wired together to make "one" battery.
You know what else is not efficient, converting the DC energy in a battery to AC electricity.
You know what else is not efficient, converting the AC electricity from the grid into DC, to charge the battery.
You know what else is not efficient, wind power at night (or day), the wind is simply gone most nights, hence you will not be "renewable" or "green" charging that car. The inefficiency of fossil fuels is greater when one must convert fossil fuel to AC electricity, then to DC, then back to AC. Electric cars are thus much more inefficient than Gas cars.
You know what else is not efficient, solar power at night, let me know if you want that explained as well.
So, you claim that you can move a heavier object with less energy than a lighter object? Yet you have not provided a link that proves that, you did give three links, two are advertisements at best. The third does not discuss car batteries.
Batteries suck, you idiots act like Duracell and Everready have not spent millions on battery research and you have come up with the solution that has evaded Duracell and Everready for a 100 years.
Either way, building bigger heavier cars to do the work of a lighter car is simply, stupidity.