The price of Google autonomous car's tech : radar, lidars & the litany of sensors & computing power needed to process their data still has a long way to come down to a price that would be palatable to car buyers, say, a 5000 $ option
In your country. Over here (Uruguay), cars are taxed to hell (the most expensive cars in the world I believe), so an extra U$ 5.000 won't be much of a difference to those who can afford a car.
Same in Singapore or Hong Kong, where cars themselves might be cheap, but license plates or parking spaces are incredibly expensive. An autonomous car should be HUGE in Singapore.
(Used car imports are banned here)