BMW CSL, BMW M1 & BMW 635 CSi. BMW's racing engine is now available to a wider public. But not much wider.Classic original advert 1980. This is a large advert and is sold un-mounted. Is in two halves. All our adverts, unless clearly stated are Originals from the date shown. They make excellent pieces of wall art and stunning gifts. Many are rare and hard to find and once sold, may not be replaced. Remember you are buying a piece of history. Website watermark is not on original.