Personally, I don't want to have a car I prefer on riding a public vehicle. It can help reduce traffic and pollution. In terms of electricity , electricity was produced by different power source like coal, diesel, wind, hydro and geothermal. When diesel is gone the source of producing electricity will be lessen. I think it will be great if all of us doesn't have personal vehicles but rather ride public vehicle (even the diesel powered or electricity). but the technology grows we can have solution for power generation to cars that have lesser consumption of electricity. And that would be the future. Electric cars is just the start of our improving technology.