Renault's Chief Competitive Officer Thierry Bollore walks past a scale model of the new Twingo. Photograph: Fabrice Coffrini/AFP/Getty ImagesPhotograph: FABRICE COFFRINI/AFP/Getty ImagesPhotographers snap the new Twingo by Renault. Photograph: Fabrice Coffrini/AFP/Getty ImagesPhotograph: FABRICE COFFRINI/AFP/Getty ImagesTwingo by Renault. Photograph: Fabrice Coffrini/AFP/Getty ImagesPhotograph: FABRICE COFFRINI/AFP/Getty ImagesThe new Giugiaro Clipper concept car. Photograph: Arnd Wiegmann/ReutersPhotograph: ARND WIEGMANN/REUTERSLamborghini President and CEO Stephan Winkelmann presents the new Huracan model. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty ImagesChairman and CEO of Bentley Motors, Wolfgang Schreiber presents the new Bentley Continental GT Speed during the Volkswagen Group preview. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty ImagesA Fiat under a car blanket. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty ImagesButterfly doors on the Giugiaro Clipper. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty ImagesA Mercedes-Benz engine. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty ImagesThe back of a Porsche 918 Spyder. Photograph: Fabrice Coffrini/AFP/Getty ImagesPhotograph: FABRICE COFFRINI/AFP/Getty ImagesA pair of Opel cars are kept under wraps before the opening of the motor show. Photograph: Harold Cunningham/Getty ImagesPhotograph: Harold Cunningham/Getty Images