Driverless vehicles will face a'testing' 200-mile (320km) journey across the UK next year. The autonomous cars will have to contend with challenges such as winding country lanes, motorways and roundabouts, in an effort to test their systems. The nationwide test, dubbed HumanDrive initiative, is designed to put the computer-controlled cars through their paces in'live traffic and natural conditions'. The HumanDrive initiative hopes to put the computer controlled cars through their paces in'live traffic and natural conditions' on a 200-mile (320 km) road test of the driverless cars The UK wants to get driverless cars on the road by 2021. However, British roads present a number of unique challenges that autonomous driving systems are unlikely to be prepared for after testing in the United States.