Tesla forecasts 620-mile range, driverless cars over next few years

Elon Musk said Tesla will have electric cars with a 620-mile range in two years, and he predicted the company will increase the distance its EVs can travel on a charge by 5% to 10% each year after that. Musk also said Tesla would have a driverless vehicle ready for launch by 2018, but he noted that regulators might keep it off the road until 2020.