A Mercedes-Benz GLA class car is displayed during the 65th Frankfurt Auto Show in Frankfurt, Germany, Sept. 13, 2013. (Xinhua/Luo Huanhuan)
An S-Class Coupe concept car of Mercedes-Benz is displayed during the 65th Frankfurt Auto Show in Frankfurt, Germany, Sept. 13, 2013. (Xinhua/Luo Huanhuan)
A Mercedes-Benz GLA class car is displayed during the 65th Frankfurt Auto Show in Frankfurt, Germany, Sept. 13, 2013. (Xinhua/Luo Huanhuan)
A Mercedes-Benz GLA class car is displayed during the 65th Frankfurt Auto Show in Frankfurt, Germany, Sept. 13, 2013. (Xinhua/Luo Huanhuan)
A Mercedes S500 plug-in hybrid car is displayed during the 65th Frankfurt Auto Show in Frankfurt, Germany, Sept. 13, 2013. (Xinhua/Luo Huanhuan)
