The range-topping GT S has a new version of the 4.7-liter V-8 found in the S, recalibrated to the tune of 433 hp, as well revised gearshift management software designed to "increase driving enjoyment," stiffened springs and a lowered ride height, and a sports exhaust controlled by pneumatic valves.
Visual cues include a new black grille with a red-accented trident logo, new headlights in metallic titanium finish, black finishing around the doors, body-colored handles, and twin black oval exhaust pipes. Inside, the Quattroporte Sport GT S gets leather M-design Alcantara seats.