The Mercury Cyclone is an automobile that was produced by Mercury from 1964 to 1971. It started as a performance model of the 1964 Mercury Comet, and was named the Mercury Comet Cyclone through 1967. For 1968, the "Comet" part of the name was dropped. Options such as GT, Spoiler and Cobra Jet were added and removed. In 1971, it was integrated into the Mercury Montego line as their performance model.