The CanAm sports car championship is legendary. For just nine years, this racing series showed how technology develops when there are hardly any regulatory restrictions. Engine power increased from 500 to 1200+ hp, and the aerodynamics would theoretically have allowed the sports cars to drive on the ceiling in tunnels. McLaren won the series five times, in 1970 with the M8D, in which company boss Bruce McLaren died during test drives. This report tells the story of a special racing series and the winning car from 1970, illustrated with current and historical images.