A Lamborghini worker is seen at the Aventador production line in a Lamborghini factory in Sant'agata Bolognese November 15, 2011. Silhouetted against grey walls, workers in black polo shirts adorned with Lamborghini's gold raging bull logo guide sheets of black material into a vacuum-controlled cutting machine, before pressing and shaping the pieces into huge moulds. These parts will make the chassis of the Aventador, which is one of the first cars to have its entire body built of carbon fibre composites, an alternative to metals prized by plane makers for their lightweight malleability. Picture taken November 15, 2011. To match Insight AUTOS/COMPOSITES REUTERS/Giorgio Benvenuti (ITALY - Tags: TRANSPORT BUSINESS SCIENCE TECHNOLOGY)