Visitors looks at the dynamical system of an electric vehicle on a new energy motor show in Hangzhou, east China's Zhejiang Province, Oct. 2, 2010. An exhibition of new energy vehicles was opened in Hangzhou on Saturday, more than 80 electric or hybird powered vehicles produced by manufacturers from home and abroad were shown on the exhibition. [Xinhua]

A staff member introduces the dynamical system of an electric vehicle to the visitors on a new energy motor show in Hangzhou, east China's Zhejiang Province, Oct. 2, 2010. An exhibition of new energy vehicles was opened in Hangzhou on Saturday, more than 80 electric or hybird powered vehicles produced by manufacturers from home and abroad were shown on the exhibition. [Xinhua]