Ford’s Lincoln-Mercury Division joins the Supercar Sweepstakes with the ’66 MERCURY COMET CYCLONE 390 GT! No longer a compact model, the Comet-Cyclone lineup for 1966 received styling and big-block power updates to compete with midsize models from GM and Chrysler, as well as Ford’s revamped Fairlane. The most stylish and powerful model - ’66 MERCURY COMET CYCLONE 390 GT - came stock with a 390 cubic-inch FE big-block with four-barrel intake and dual exhausts under its scooped fiberglass...