Ja for cars! Future autos debut at German show

Small, energy-efficient cars are the trend at Germany's 64th Frankfurt International Auto Show, where firms showed off their concepts for future models.

A model stands next to a transparent car showing security components at the 64th Frankfurt Auto Show in Frankfurt, Germany. Europe's largest motoring expo got underway with a raft of new models designed to show that the global automobile industry is alive and kicking despite uncertain economic times. The show is held every two years. Michael Probst / AP
Visitors take pictures of Lamborghini sports cars at the Frankfurt Auto Show. Kai Pfaffenbach / Reuters
Mercedes-Benz's concept "e-cell" car is inspected by visitors to the Frankfurt Auto Show. Kai Pfaffenbach / Reuters
Volkswagen's Nils concept car makes its debut at the Frankfurt show. Thomas Kienzle / AFP - Getty Images
Mercedes-Benz's F125 concept car recalls the company's "gull-wing" door designs from the 1950s. Frank Rumpenhorst / EPA
The Bugatti Veyron L'Or Blanc, a one-off "white gold" vehicle, is being built in co-operation with Germany's Konigliche Porzellan-Manufaktur, a centuries-old porcelain producer based in Berlin. It willl cost about $2.2 million. Kai Pfaffenbach / Reuters
British actor and comedian Rowan Atkinson poses next to a Rolls Royce Phantom Coupe at the show. Atkinson, an auto enthusiast of many years, recently crashed his McLaren sports car in England, escaping with minor injuries. Alex Domanski / Reuters
A model poses inside the Citroen Tubik concept car. Thomas Kienzle / AFP - Getty Images
The Ford Evos concept car is another "gull-wing" model. Michael Probst / AP
The new Volkswagen Up! microcar, seen in its buggy version, is displayed at the show. Frank Augstein / AP
Recalling its early 20th century racing cars, Audi's "urban concept" auto is presented at the show. Boris Roessler / EPA
Mercedes-Benz's new AMG SLS Roadster makes its entrance at the show. AMG is the company's high-end customizing division. Frank Rumpenhorst / EPA
BMW CEO Norbert Reithofer speaks during the presentation of the company's i3 and i8 concept cars. Ralph Orlowski / Reuters