While the Chinese automotive sector is experiencing double-digit growth, Chinese finished vehicle exporters are facing stiff competition and ongoing logistics challenges in getting their products to foreign markets because of a lack of RoRo ships, according to a report on http://www.cargonewsasia.com. Zhang Xiaoyu, vice-chairman of the China Machinery Industry Federation said that while the number of China's vehicle exports has increased sharply, many of these cars lay in transit at ports because shipping companies simply do not have enough vessels to transport them. According to China Custom's figures, the mainland exported a total of 340,000 cars in 2006 - double that exported in 2005.