The seats have a stylised M repeated on the seat backs - a design element repeated at the top of the dash and in the front grille. The central sections of the seats are upholstered in perforated Alcantara suede, for optimal breathability and better grip during hard cornering. Alcantara is also used on the door side panels, the front armrest, the steering wheel and the gear lever knob. The Maserati Quattroporte Sport GT S MC Sport Line also features Alcantara headlining as standard, as well as heated front seats.

The interior finishes on the Sport GT S MC Sport Line are a celebration of technology and workmanship. The material used is the groundbreaking TitanTex, an ultra-lightweight aluminium-coated titanium fibre fabric, made even more special by specific processing, which gives the material a high-tech, high-performance look, as well as a shinier, more three-dimensional overall appearance.

The transmission shift paddles, integral with the steering column, have a decorative chromed finish that gives their edges definition. They are also longer in shape, to help provide a good grip even when the steering wheel is turned. 

Enhancing the car's interior sports aesthetic are the aluminium pedals, specially designed for high-performance driving, as they provide outstanding grip for quick and precise movements on the brake and accelerator pedals.

Audiophiles will relish the upgraded Bose Surround Sound system that is standard in all Maserati models. Designed specifically to suit the interior ambience of the Quattroporte Sport GT S MC Sport Line, the cutting edge surround sound technology is able to take into account the acoustics of the cabin and reproduce music of such depth, clarity and tone that it is on a par with the best concert hall quality. In conjunction with the CD player that also supports MP3 formats, a Multi Media System offers a 30GB hard drive on which you can store thousands of music files while a USB connection and iPod interface provides instant access to your own personal music player.