If you are interested in the Th!nk City, then you might want to take this survey:
Survey | Qualtrics Survey Software
They reveal their thinking in terms of the price of the City here in the USA: $25,000-30,000 net. I read this as after the $7,500 federal tax credit -- but then that assumes that they are selling the battery pack as part of the car, and are not leasing it.
They also ask for suggested features, and whether you would be interested in smaller or larger battery packs, and at what price difference. The "base" version has a 110-120 mile range.