

The first motor car built 1886 by Carl Benz drives along the new Mercedes-Benz F 125 concept car at the Frankfurt Auto Show IAA in Frankfurt, Germany, on the first public weekend Sept. 18. Organizers expect more than 800,000 visitors to the Auto Show that ends Sept. 25. Michael Probst/AP
Visitors examine a life-size model of a Mercedes SL made of gear wheels and other recycling parts by the German artist group 'Giganten Aus Stahl' on Sept. 17. Ralph Orlowski/Reuters
Visitors of the Frankfurt Motor Show watch a Mercedes-Benz fuel cell show car 'F125' at the Mercedes-Benz exhibition on Sept. 17. Ralph Orlowski/Reuters
German Chancellor Angela Merkel sits in a Volkswagen up! during a visit to the Frankfurt Motor Show on Sept. 15. Kai Pfaffenbach/Reuters
The exhibition booth of German car manufacturer Audi is pictured during the 64th International Motor Show (IAA) in Frankfurt, September 14. The world's biggest auto show opens its doors to the public Sept. 15 to Sept. 25. Alex Domanski/Reuters
The Audi Urban concept car is presented on Sept. 14. Michael Probst/AP
A BMW i3 concept car is pictured through a reflecting glass sculpture on Sept. 14. Ralph Orlowski/Reuters
Components for security are displayed in a transparent car on Sept. 14. Michael Probst/AP
People walk between Audi cars that are presented on Sept. 14. Michael Probst/AP
Renault-Nissan CEO Carlos Ghosn poses beside Renault's concept car 'Frendzy' on Sept. 13. Martin Oeser/dapd/AP
An electric smart compact car of German car manufacturer Mercedes is charged at a charging station on Sept. 14. Kai Pfaffenbach/Reuters
The electric car 'MUTE' of the technical university of Munich (TUM) is displayed on Sept. 14. Ralph Orlowski/Reuters
The concept 'e-cell,' based on an SLR super sports car is seen at the exhibition booth of German car manufacturer Mercedes on Sept. 14. Kai Pfaffenbach/Reuters
A picture taken on slow shutter speed shows the exhibition booth of German car manufacturer Mercedes on Sept.14. Kai Pfaffenbach/Reuters
The Mercedes-Benz F125 concept car is presented on Sept. 13. Michael Probst/AP
The Volkswagen VW concept car Nils is on display on Sept. 13. Frank Augstein/AP
A Mercedes-Benz SLS AMG E-Cell car is seen on Sept.13. Michael Probst/AP
The new Volkswagen VW 'Up!' car Buggy version is on display on Sept. 13. Frank Augstein/AP
The Ford Evos concept car is presented on Sept. 13. Michael Probst/AP
Models pose at the exhibition booth of French carmaker Citroen next to the new 'Tubik' car on Sept. 13. Kai Pfaffenbach/Reuters