Because of the carbon fiber composite material has the advantages of light weight, high specific strength, high degree of freedom of design, integration of the advantages of carbon fiber composite materials, has gradually become the new darling of the automotive lightweight material. The world's carbon fiber production reached 40000 tons per year or more, the whole world is mainly Japanese America Germany and Korea a few countries to master the core technology of carbon fiber production, and mass production.Typically, body weight about 70% fuel consumption, thus reducing the primary problem of vehicle fuel consumption is to reduce vehicle weight. The use of carbon fiber reinforced automobile because the reduced the weight of its own, not only fuel efficiency greatly improved, but also indirectly reduce carbon dioxide emissions, carbon fiber material of environmental protection as the attention all around the world.In recent years, the site of application of carbon fiber composite material in automobile expanding. In 2010 the listing of TOYOTA sports car Lexus LFA using CFRP comprehensive body, has become the focus of attention, but the prices are also a record 37500000 yen Japanese made cars in the highest. Subsequently, the BMW group to improve production efficiency through the development of a variety of techniques, finally CFRP is successfully applied to the production car.Carbon fiber precursor supplier of BMW is Japan's MITSUBISHI rayon. Since 2012, MITSUBISHI rayon expanding carbon fiber industry chain, the acquisition of Japan CFRP parts manufacturer Challenge company and other enterprises, and plan 2014 annual increase in U. S. factory equipment, the annual production capacity of about 10000 tons in the existing based on expanded to 20000 tons, will show as the main customers of BMW Automobile Company (BMW) the widening availability.