Dieter Zetsche (L), chairman of German car maker Daimler AG and head of Mercedes-Benz cars, and Mercedes' British driver Lewis Hamilton pose in front of a Mercedes AMG Project One car during a preview night for the media on the eve of the opening of the Internationale Automobil Ausstellung (IAA) motor show in Frankfurt am Main, west Germany, on Sept. 11, 2017. (Xinhua/Luo Huanhuan)