The Cyclone was Mercury's macho Grand Tourer model from 1964, given "Coke bottle" styling from 1966 that looked best on the most popular Fastback Coupe body. The 1968 Mercury line featured a totally new, and renamed, mid-size Montego line. There was a single Comet model left as an entry-level car.
The new Montego was based upon the Ford Fairlane line, and as such it included the sporty new fastback models. Essentially, the new Montego MX replaced a combined Capri and Caliente line, the Montego replaced the base Comet line, and this year's Comet was a single model entry level 2-Door Hardtop. At the top end, the new fastback Cyclone replaced the 1967 vintage convertible in the lineup. A new engine powered the new mid-size line with the 302 CID V8 replacing the 289 CID V8 in the Montego and Cougar lines. The 302 V8 was a powerful and efficient engine that would live well into the 1990s. Styling for the new mid-size cars very closely resembled the full-size Mercury models.
The Cougar pony car received minor styling changes but added some important option packages. The GT and GT-E packages were available on any standard Cougar model. These high-performance cats featured Marauder 390 GT engines, special suspensions, power front disc brakes, dual exhausts and F70 x 14 Wide-Oval tires. The GT-E added special exterior trim with 7.0 litre badging, modified grille and taillamp design, beefier suspensions twin-scoop hood, automatic transmission, power steering, quad exhaust pipes and styled steel wheels.
Full-size Mercury models wore revised front and rear styling touches. The model line was not significantly changed, although the Breezeway Sedan models were discontinued this year. Also, the Brougham Sedan was demoted to an option package on the Park Lane 4-Door Hardtop. The long-lived 410 CID V8 engine was dropped this season. A final note: the Mercury slogan refers to 33 models, but this includes some offered as option packages, such as the Brougham and the Cougar GT.