Start a fund and Solarize Estonia?
I'll bite. When I first bought my i-MiEV, I researched my local grid fuel mix and the emissions generated by it. In the US, coal releases 2.2 lbs. of CO2 per kWh. Natural gas releases .95 lbs. of CO2 per kWh. With the blend of electricity 3 years ago, each kWh produced 1.95 lbs. of CO2 per kWh. So, to drive 40 miles, my i-MiEV (at 3.875 mi./kWh) would produce 20 lbs. of CO2. For my old Cavalier at 25 MPG, and each gallon of gasoline releasing 20 lbs. of CO2 from the tailpipe, driving the same 40 miles would release 32 lbs. of CO2. Even if the i-MiEV was 100% coal-powered, it would only release 22 lbs. for the drive.
However, that was three years ago. Today, (as evidenced by the result of our election) many coal plants have been shut down in favor of natural gas, and even some mini-hydro power has come online. So, if I re-calculate for 100% natural gas power, the i-MiEV would then produce only 9.8 lbs. of CO2. However, both of my i-MiEVs are solar-powered, so they produce net 0 CO2. I say net because kWh credits are generated during the day and the cars charge at night (which may actually be more efficient), but once I get my second-life Tesla batteries, they'll run on pure solar power.
Now, as for the production of the car. There is almost no difference for the car itself, the difference lies in the propulsion system (even though the i-MiEV is much lighter than other vehicles without its battery). While I don't know the specifics of manufacturing, it would seem that since an engine is made up of hundreds of different parts and a battery pack+motor is only a couple dozen, that the production impact would be lower for an electric drive system.
As for the unique situation in Estonia, running an ICE under a steady load is more efficient than the variable load of a car. That, combined with the regenerative braking of the EV, would make it seem to be slightly more efficient to use a generator and charge an EV vs. an ICE vehicle.
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
Solar-powered since 10/10/2013
"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015
2017 Bolt EV LT in Orange with QC - 7/31/2017
Driving electric since 2-21-2013.