Based on the media coverage, it is easy to assume that Google is the only company who is going towards building a driverless car. Apparently, it is not the case here. Almost every automotive manufacturer is working towards a driverless car, i.e. Volvo. Volvo aims to test 100 or so driverless car on the streets on Gothenburg in Sweden by 2017 in order to know how the software should react in case if there is an unexpected scenario happen.
There are already a few situations whereby a driverless car is used in this modern day. One of these situation is in Pilbara, Western Australia. Around 50 driverless trucks are helping workers in Pilbara mining to transport around 200 millions of raw materials over a few millions of kilometers. In this way, it reduces the risk of human error caused by fatigue as well as improve the efficiency of the sites. In military sector, a driverless vehicles will help them in transporting goods without having to risk of losing the live of the personnel in the conflict area.
Apart from the above purposes, driverless car can be used as a public transportation too. As an example, there will be a small fleet of autonomous taxis in Milton Keynes, a small city in UK, by the end of 2017. However, these driverless car will not be privately owned. You will need to book it with your smartphone in case if you want to use it. On top of that, it will be slow moving with the speed of 12mph (19km/h) which most probably suitable to poor, elderly, blind and disabled people.