The Nissan-Renault alliance aims to launch a new electric car in the "booming" China market costing just $8,000 within two years, chief executive Carlos Ghosn said Tuesday. "What's interesting is that China today represents more than one-third of the (global) electric car market whereas five years ago, it was absolutely absent from this market," Ghosn told a panel on future trends in autos. "What we are seeing in China is that what is really selling are the very low cost electric cars.