How far away are driverless cars from appearing on British roads?

This is Future Tech where we look at the latest innovations and gadgets, and discuss all things technology related. This week we talk driverless vehicles. Companies such as Uber and Google are never far from the headlines in the race to market the technology. Recently California approved the road testing of self-driving cars but according to the House of Lord's Science and Technology Committee, who this week published their report into autonomous vehicles, it’s still a long road before they appear on British roads. Share Radio’s Tom Hill brings this report.