A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

Models presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua] 

A model presents a car at the 2013 China Hainan International Automotive Exhibition in Haikou, capital of south China's Hainan Province, July 18, 2013. The four-day exhibition opened on Thursday, attracting 100 automobile manufacturers. [Photo/Xinhua]