An Audi R8 is on display at the Nanjing International Auto Show 2011 in Nanjing city, Jiangsu province, on Sept 29, 2011. [Photo/CFP]
A Mercedes SLS AMG is on display at the Nanjing International Auto Show 2011 in Nanjing city, Jiangsu province, on Sept 29, 2011. [Photo/CFP]