Both the base colour and the M stripes, known in technical jargon as livery, are applied largely by hand, involving an extremely high level of time and effort. A total of 22 individual parts are painted in a process specially designed for the BMW 3.0 CSL. Particular attention is paid to a highly precise arrangement of the areas of the body surfaces and livery stripes finished in visible carbon. In general, most of the exterior in Alpine white uni comprises carbon components, which are hand-painted by specialists. The high-quality material is only visible in the lettering on the roof, on the rear wing, the sills and the lower parts of the bumpers. For this purpose, these areas must be exposed during the painting process. In order to precisely position the livery stripes in the BMW M GmbH colours, the painters use masking by means of laser projection as well as customised contour films.