If you'd dreamed of ordering yourself a Tesla and driving around the country without paying a cent for electricity, you'd better get your order in quick. With more and more of Tesla's Model S and Model X luxury electric cars appearing in driveways around Australia and around the world, the plucky little start-up from California has a plan to stop its fast-charging network of Superchargers from becoming clogged: it will stop offering free Supercharging to new owners from the start of 2017.