Well, some general comments on this kind of cars: my wife is complaining a lot about mileage especially of the E32 750 V12 which is really not good at around 3-5km/liter (depending on where I drive), the E36 M3 is much better.
So she is watching those nice commercials on TV about the Toyota Hybrid, Honda Hybrid, Mitsubishi MiEV like this
http://www.treehugger.com/cars/2014-...-cut-6130.html
But I am telling her always:
Look at the prices of the electric or Hybrid cars, >$20000 at least. For someone which has no car it might be interesting, but I have a car that runs and when I sell this old car I almost get nothing for it, for >$20.000 I can buy a lot of gasoline and drive in a more comfortable car than this kind of golf cart like the MiEV is.
Also consider the prices of battery packs for these cars, they cost a fortune. For the price of new batteries for a Hybrid car I can drive another 5 years with a gasoline car.
Definitely I would not buy an expensive e-drive car, if so, the cheapest one like the MiEV just to use it as a vehicle to drive from point A to B.
But here in Japan the biggest sellers are the socalled Kei Cars, that means cars with 660 cc engines, and they cost only around $10000 or less and have automatic trans, AC, electric windows and space enough and low fuel consumption too.
http://en.wikipedia.org/wiki/Kei_car
And no worries about the cost to replace expensive e-drive battery packs after some years.
If there is a break through in batteries = weight, storage capacity, price, then I would consider a electric or hydrid.
The next generation windpower? '-)
http://otherpower.com/otherpower_wind_modelAtest.html