A worker cleans the Ford stand before the motor show opensPhotograph: Alex Domanski/ReutersWorkers clean the stand of German car manufacturer Mercedes-BenzPhotograph: Ralph Orlowski/ReutersWolfgang Dürheimer, president of Bugatti, presents the new Veyron L'Or Blanc supercarPhotograph: Kai Pfaffenbach/ReutersAn example of Porsche's first version of the 911 Carrera sports car in the exhibition hallPhotograph: Kai Pfaffenbach/ReutersThe Citroen Tubik concept carPhotograph: Frank Augstein/APDaimler chief executive Dieter Zetsche poses in the Mercedes F125 fuel cell show carPhotograph: Alex Domanski/ReutersToyota's FT-86 II concept carPhotograph: Frank Augstein/APRupert Stadler, chairman of Audi, poses with the company's latest urban concept carPhotograph: Arne Dedert/AFP/Getty ImagesThe BMW stand on media dayPhotograph: Michael Probst/APKarl-Friedrich Stracke, Opel chief executive, in the RAK electric concept carPhotograph: Kai Pfaffenbach/ReutersStephen Odell, chief executive of Ford Europe, presents the company's Evos concept carPhotograph: Daniel Roland/AFP/Getty ImagesMercedes-Benz's SLS AMG E-Cell electric car Photograph: Kai Pfaffenbach/ReutersChairman of Lamborghini Stephan Winkelmann presents the latest version of its Gallardo supercar Photograph: Uwe Anspach/AFP/Getty ImagesAudi presented a reimagined version of its compact A2 modelPhotograph: Michael Probst/APModels on the Fiat stand pose next to the latest version of the Panda Photograph: Daniel Roland/AFP/Getty ImagesFrench car manufacturer Renault presented the new version of its Twingo Photograph: Fredrik Von Erichsen/AFP/Getty ImagesVisitors look at the Volkswagen Nils electric concept car at the VW booth Photograph: Kai Pfaffenbach/ReutersMaserati's new Kubang SUVPhotograph: Michael Probst/APA man looks at the Mercedes-Benz A-Class concept car, with the sculpture 'Mercedes-Benz Aesthetics No 1' in the foregroundPhotograph: Thomas Kienzle/AFP/Getty Images