BMW M achieved spectacular victories on all the world's famous racing circuits. The brand also produces a wide range of innovative high-performance limousines, many of which have achieved cult status and have become prized by collectors. This book tells the story of the fifty years of BMW M and shows what lies behind the "strongest letter in the world." The lavishly illustrated book describes historic milestones in motorsports and presents outstanding models. It features newly photographed one-of-a-kind cars which were never produced in series; narrates the success of BMW M from different angles, describing progressive improvements in chassis technology and providing insight into the teams of experienced test and racing drivers as well as the innovative developers and engineers; and highlights the course for the brand to move forward into the future through the inclusion of electromobility. The publication is published in direct co-operation with BMW drawing images, sketches, designs, and information directly from the archive of BMW.