Maserati has released details of a new high-performance flagship for its Quattroporte range.

The Maserati Quattroporte Sport GT S gets a re-mapped ECU, pushing the 4.7-litre V8’s power up 8bhp to 433bhp, a new active-valve sports exhaust and revised gearbox software.

The Sport GT S also features tweaked dampers, stiffer springs and a lower ride height.

The GT S also gets numerous visual changes over the standard S model. These include a black grille with red accents for the Trident logo, black rather than chrome finishing around the doors, as well as twin oval tailpipes and metallic-finish headlights.

The Quattroporte GT S is due to be unveiled to the public at the Detroit motor show in January.

Prices and an on-sale date for UK cars are yet to be confirmed.

Matt Rigby