The winglets are made of pre-impregnated twill carbon which are manufactured in an autoclave at 6 bar pressure and 90 degrees temperature.
 This process combined with the use of the best raw materials has made it possible to achieve maximum structural strength and a very low weight to give the BMW the best performance.
 They have a glossy finish and have a double anti-UV coating with a special clear lacquer that creates a special 3D view of the texture.
 not approved for the street!