The big question is what platform to use. Mercedes-Benz and Audi are both developing electric versions of their respective supercars. Nissan could do a battery powered version of the 370Z, which has both its positives and negatives. The Z is relatively lightweight for a modern car, although its small size could make packaging the battery problematic. A more likely scenario might be a version of the 2009 Infiniti Essence concept which was originally shown as a hybrid. The larger car would allow for more battery and range.
A third possibility that might actually be the best option is a new car based on the Leaf platform but with the motor moved to the rear axle. The compact size of the electric motor could make packaging easier than with an internal combustion vehicle, and much of the rest of the hardware could stay the same.
[Source: Inside Line]