After the war BMW maintained a high profile on the Grand Prix scene, winning no fewer than 19 world titles from the mid-1950s to the mid-1970s in sidecar racing. But this book covers much more, including the American scene, the K-series four-cylinder, the four valve twins of the early 1990s and, finally, the great successes gained by the F650-based single in the European and British Supermono series.