However, people who live in land scarce city states generally don't get access to their own garages. One major hurdle to overcome would be placing the charging outlets at shared car parks - EV taxes to pay for the construction and maintenance of common charging outlets, charge cost metering, and replacement of vandalized outlets are some of the problems that add up to the cost of ownership of such vehicles.
The cost of a Toyota Prius in Singapore is already almost SGD$100 000 (approx. USD$69 000, or 3 times the US list price). I can't see the Leaf being adopted on a large scale by the pragmatic citizens in Singapore unless its overall cost of ownership is equal to or lower than conventional vehicles.