Once upon a time, you needed a crystal ball to see the future. Now all you need is a powerpoint. This week in Japan, Nissan unveiled the future of motoring, the production-ready, plug-in, electric family car. Called the Leaf, this spacious five-door hatch promises to usher in a new paradigm of motoring. Its name was chosen to indicate clean air, or, as the company said, because it purifies air by taking emissions out of the driving experience." It's not a far-off dream of engineers, either. The Leaf will be on the roads in Japan and the US next year. And Nissan has two more EVs (electric vehicles) that are "imminent," as one senior company executive [said]. Simple in concept yet sophisticated in its execution, the car plugs into regular powerpoints to charge its onboard batteries. Unlike hybrids such as Toyota's Prius, Honda's Insight and the forthcoming Holden Volt, the Leaf doesn't require any petrol. It's 100 per cent electric. So far, Nissan, in its alliance with Renault (the two companies share the one chief executive but have separate boards), has signed understandings or agreements with 27 governments around the world to bring in electric cars. For consumers, though, the biggest hurdle will be its price. Rival Mitsubishi has its first all-electric car, the iMiEV, on the cusp of entering Japanese showrooms but, contrary to its diminutive size, it carries a big price tag there -- nearly $60,000 [Australian]. But Nissan is working on the financing details of the Leaf so it costs less to own and run than a comparable petrol car. It's Nissan's EV strategy to take the technology to the masses.