The Maserati GranTurismo S

Maserati GranTurismo S

Maserati GranTurismo S

The new Maserati GranTurismo S is an interpretation of the perfect balance between sportiness and comfort shifts the emphasis onto performance and driving enjoyment.

The new 440 hp V8 4.7 engine, with a maximum torque of 490 Nm at 4750 rpm, electro-actuated gearbox with fast MC Shift, Transaxle layout, sporty exhaust and brakes made with dual-cast technology make the GranTurismo S the new flagship for Maserati sporting flair, with acceleration from 0 to 100 km/h in 4.9 seconds and a maximum speed of 295 km/h, the highest ever reached by a production Maserati.

The compact and lightweight 4.7 litre V8 engine develops maximum power output of 440 hp at 7,000 rpm and peak torque of 490 Nm at 4,750 rpm, and ensures high specific power output and more torque at lower speeds as well, without affecting the capacity to up the revs quickly, typical of racing engines. The increase in power output and torque has not affected the versatility of the power unit, which continues to be readily harnessed even during everyday use. It sounds deep and throaty, but the exhaust valve pneumatic control can also be activated to make it discrete.

An electro-actuated 6-speed gearbox is paired with the 4.7 litre V8 engine, and has MC-Shift software which harnesses the new engine’s power output, ensuring new unbeatable gearshift performance in terms of the whole sports car range.

The gearshift solution known as MC-Shift is the most important innovation of the electro-actuated system on the Maserati GranTurismo S: this includes management software and special hardware components which give top performance in terms of gearshift times.

In conventional electro-actuated systems the three shift phases (cut in torque and opening of clutch; gear disengagement, selection and engagement; closing of clutch and restoration of torque) are carried out sequentially.

On the Maserati GranTurismo S the shift phases are partially overlapped: gear disengagement and engagement take place in advance of clutch opening and closing; this means that the shift time, interpreted and calculated as the break in acceleration, drops to 100 ms, whilst the single gear engagement phase reduces to 40 ms.

The fast MC-Shift is available only when shifting up and in Manual Sport mode, provided that the transmission control unit recognises when given parameters relating to engine and transmission temperature are achieved: the quick shift is possible above 5500 rpm and with the throttle at 80%.

Once these parameters have been achieved, the system enables fast shift and warns the driver through the MC-S indicator on the dashboard display, which lights up and stays on.

The engine and gearbox on the Maserati GranTurismo S are arranged in the Transaxle layout, typical of high-performance sports cars and representing the technological DNA of Maseratis. The front-mounted engine, and the gearbox, located to the rear, are rigidly connected by a tubular element containing the driveshaft. This solution gives excellent weight distribution, 47% over the front axle and 53% over the rear axle, which translates into excellent dynamics and top performance.

Published 4 March 2008 Melanie Carter

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