At last year’s North American International Auto Show, Chinese carmaker BYD introduced itself to the US with plans of selling cars there by 2011. Now they’re back at this year’s show, and have unveiled their new pure-electric car, the e6. Unlike some other electric vehicle manufacturers, BYD has actually been selling cars to real, live consumers for the past two years. In 2009, BYD sold 450,000 units in China, and expects to sell around 800,000 this year. The big news, however, is that they plan to start selling the e6 in North America in 2010 - a full year ahead of schedule.