After "adventuring" with the two Medicis, Giugiaro now had to make a sudden return to a severe three-box shape, as per the classicism requested. He concentrated on proportioning the mass, so difficult in a sedan almost 5-meters long, with the aim to come up with at once a stately (but not imposing) and refined product. The front end of the Quattroporte sports the classic Maserati radiator grille, chrome-plated and jutting out, and double oblong headlights which, for cost reasons, are of normal production. This limitation leads to an unusual combination, but highly effective. So much so that it was to appear on all subsequent Maseratis.

Giugiaro left the wheelbase unchanged and worked on the overhangs, increasing the front one and shortening the rear one by quite a bit: reproportioning in this way enabled him to create a sporty look without modifying the engineering assembly in the slightest. The Asso di Quadri is not "related" to the Asso di Picche (1973) or the Asso di Fiori (1979), if only just in name. Giugiaro transferred the marked, aggressive lines of the Asso di Picche to a softer, more aerodynamic shape.

Giugiaro is the first to ruthlessly criticize his own work and the Medici II is a highly representative example: dissatisfied with the first version's overly slanted front end, that threw the side way off balance, he reproportioned the car, meticulously "cutting and stitching" the sheet metal. The border of the hood was heightened and this change sufficed to make a marked improvement in the car's look. The nose became more pronounced with the adoption of double rectangular headlights (in place of the retractable ones) and the introduction of a true radiator grille. The front end view of the Medici II thus lost the very sporty image that had characterized the first version, becoming decidedly more classical.

Built over the same platform as the sedan, it was to arouse surprise for its streamlined coupe shape that on the inside concealed four comfortable seats. Shape-wise, the Sprint has no ties with the Alfasud sedan, while its taut and uncompromising lines recall the Volkswagen Scirocco. Giugiaro drew a very clean side with the windshield and front fender on a definite slant, contrasting a high, truncated tail at the back.