Bluebird Mach 1.1
 Bluebird Mach 1.1 (CMN-8) was a design for a rocket-powered supersonic land speed record car planned by Donald Campbell but thwarted by his subsequent death during a water speed record attempt in Bluebird K7 in early 1967.Donald Campbell decided a massive jump in speed was called for following his successful 1964 LSR attempt in Bluebird CN7. His vision was of a supersonic rocket car with a potential maximum speed of 840 mph referred to as Bluebird Mach 1.1.