Unmanned Vehicles by 2020? That is what Nissan, Asia’s first manufacturer to announce plans to put driverless cars into production, hopes to do. This may result in a reduction in pollution, travelling time and even road fatalities. However, is Nissan being overly ambitious? Google does not think so as they have clocked thousands of miles with their own driverless vehicles and aims to partner with an automaker by 2017. Technology is available, but piecing it together will be a challenge.