宝马公司和合作伙伴西格里碳素集团于2014年2月17日宣布,将投资超过1亿欧元(1.37亿美元)使其合作生产的碳纤维能力扩大一倍,从现在的每年3000 t达到每年6000 t。除了满足i3和i8汽车的需求外,这种碳纤维也将用于2015年的新7系列。2009年,西格里碳素集团和宝马集团成立了各持股51∶49的合资企业以生产汽车工业用碳纤维和织物。该合资企业通过两个公司进行运作,一个位于北 On February 17, 2014, BMW Group and its partner, the SGL Carbon Group, announced that it will invest more than 100 million euros ($ 137 million) to double the capacity of its co-production carbon fiber from the present 3,000 tons per annum 6000 t. In addition to meeting the needs of i3 and i8 cars, this carbon fiber will also be used for the new 7 Series in 2015. In 2009, the SGL Carbon Group and BMW Group formed a 51:49 joint venture to produce carbon fibers and fabrics for the automotive industry. The joint venture operates through two companies, one in the north