Self-driving cars are no longer science fiction. Experts say there will bemore than 10 million driverless vehicles on the road by 2020, and several manufacturers (such as Daimler, Kia, and Mercedes) are currently testing models in Nevada and California. With the potential to solve urban congestion, parking problems and provide better mobility for the elderly and lower-income residents, it’s easy to see the appeal of autonomous vehicles to both the local authorities, and the public at large.