Maserati is replacing its best-selling Maserati GranTurismo S model with a new Sport variant. The GranTurismo Sport, revealed here at the Geneva motor show, gets a revised, 454bhp 4.7-litre V8 engine, which gives the model a 186mpg top speed and a 0-62mph time of 4.7sec.

Two transmissions choices will be offered on the Sport. The standard gearbox is a six-speed torque converter automatic, while a six-speed sequential manual transaxle ’box comes as an option. The latter has steering wheel-mounted paddle shifters, a feature that’s optional with the auto ’box.

See the official pics of the new Maserati GranTurismo Sport

To distinguish the Sport from the outgoing S, the model receives a restyled front bumper that’s claimed to optimise airflow for both engine and brake cooling. There are also new front headlights and LED daytime running lights fitted as standard, while the rear lights have been replaced and some dark trim has been added. Inside, the steering wheel is new; revised front seats liberate an extra 20mm of headroom.

Pricing has yet to be revealed, but the Sport is likely to cost around £90,000 when the car reaches the UK in September. The standard 4.2-litre V8 GranTurismo and the hardcore MC Stradale variants continue unchanged.