Maserati GranCabrio – Informaţii oficiale

Autor: Oraan Mărculescu acum 10 ani Prezentari
The open-top Maserati GranCabrio is pure Maserati. It is a
Maserati in the truest sense, with an unmistakable Pininfarina
design, spacious interior, handcrafted details, driving pleasure
and high performances. The Maserati GranCabrio touches all five
senses in an open-air experience that retains all the typical
comfort and performance brio. Like all Maserati’s open-top models,
the Maserati GranCabrio is a special car intended for true
connoisseurs.

The Maserati GranCabrio continues in the footsteps of the
Maserati tradition in open-top models, and adds to a line-up of
models that has made the history of the Modena manufacturer, such
as the 1950 A6G Frua Spyder, the 3500GT Vignale Spyder (1960), the
Mistral Spyder (1964), the Ghibli Spyder (1968) and the 2001
Maserati Spyder, the car Maserati chose for his
comeback to the United States.

True to its tradition, the Maserati GranCabrio yet opens a new
chapter, because never before have four-seater top-down models been
produced at the Viale Ciro Menotti Maserati factory in Modena.
There are four proper seats are provided, so that the rear
passengers are not merely supporting actors, but co-stars of the
journey.

The Maserati GranCabrio is powered by a 4.7 liter V8 engine
paired with the fluid 6-speed automatic transmission. In Sport
mode, the V8 gives the driver and passengers the full power of its
323kW, with a thrilling roar that becomes even more exciting with
the top down, as it becomes one with its surroundings.

Completely re-engineered

The body of the Maserati GranCabrio has been thoroughly
overhauled. Despite the lack of an overhead frame and a wheelbase
at the top of its class (2.942mm: longer than its direct
competitors) it guarantees the best possible performance in terms
of structural rigidity. This enhances the smooth handling, safety
and comfort of the car, and fully exploits the powerful, efficient
mechanics.

The newly-designed bearing monocoque has been made using
materials and technologies designed especially to optimize weight:
the bonnet and cross beams are made from aluminum, while the boot
is made from SMC (Sheet Molding Compound).

The excellent weight distribution (with higher load at the rear)
also facilitates excellent on-the-road dynamics and improved
safety, in combination with the vehicle’s control systems. These
include, for the first time ever, the Hydraulic Brake Assist (HBA),
which optimizes brake performance both in frequent use and in
emergency situations.

The new body took thousands of hours of calculations, testing
and development. The result of all this work is a static rigidity
at the top of its class (75000 DaN/m/rad) and dynamic torsional
frequency of 27.2 Hz.

Particular attention has been paid to developing the
aerodynamics, with the creation of a flat aluminum base that not
only adds to the overall body’s rigidity but also reduces Cx by 6
points. In this way, for the first time, the convertible version of
a car is able to maintain the same aerodynamic performance of the
coupé, with a Cx of 0.35.

An all-round experience

Behind the wheel of the Maserati GranCabrio, driving fun
combines with comfort and safety in all road conditions. With the
longest wheelbase in its segment, the Maserati GranCabrio gives all
passengers an extremely comfortable ride even on long journeys.
Their safety is enhanced thanks to the extendable roll bars behind
the rear seats, which are activated if necessary.

Passenger comfort onboard the Maserati GranCabrio also comes
from the perfect integration between the vehicle’s hood and its
main systems, guaranteeing maximum efficiency and drivability in
all conditions. The automatic dual-zone climate control function
optimizes the conditions inside the car, adjusting the internal
temperature and the intensity of ventilation depending on the
outside temperature, heat of the sun, and air humidity.

By capitalizing on the close collaboration between Maserati
engineers and BOSE technicians on the GranTurismo,
the GranCabrio has been equipped with a BOSE audio system that adds
another dimension to open-air music.

The Maserati GranCabrio is fitted with Skyhook suspension as
standard. The braking system uses high performance dual-cast
technology, developed in collaboration with Brembo and already
successfully employed on the GranTurismo and
Quattroporte.

The Maserati GranCabrio’s roof is strictly canvas-made,
emphasizing the link with the Maserati tradition.

Aerodynamic, aero-acoustic efficiency and the desire to make the
Maserati GranCabrio a car suitable for all year driving are the
principles which led the Maserati technicians to develop a
three-layer canvas hood. Not only does it offer ample opportunities
for customization, but it also adds considerable benefits in terms
of on-the-road dynamics, as the car’s centre of gravity is lower.
In 28 seconds, passengers can enjoy the thrill of the open-air
experience, activating the open/close mechanism even when the car
is moving, at speeds of up to 30km/h.

The Maserati GranCabrio will be marketed this coming winter, and
experienced by customers the world over from the following
spring.

Clients and supporters of the brand can already choose contents
and features of their own Maserati GranCabrio, thanks to a
completely renewed car configurator, which is state of the art in
terms of image quality and flexibility of usage.

Technical specifications

  • Body

    • High-strength steel bearing monocoque with box-section panels
      and structure constructed in sheet galvanized, two-door cabriolet,
      four seats, longitudinal centre-front engine (between the two
      axles), rear wheel drive.
    • Cx 0.35 with car closed and 0.39 with car open.
    • Monocoque
    • Multi-material bearing monocoque, passive safety performance
      conforming to „worldwide” regulations, integration of various
      design technologies for weight/performance optimization: steel
      structural part, aluminum bonnet and bumper front reinforcement
      cross member, boot lid in thermosetting composite material.
  • Frame

    • Derived from the Quattroporte structure, with reduced wheelbase
      and rear overhang, designed to satisfy the most stringent American
      crash standards (FMVSS208, Federal Motor Vehicle Safety Standard),
      front structure compliant with ACEA1 „pedestrian impact”
      standards.
    • Constructed in high-strength steel boxed sections; it
      integrates a tubular structure in the rear part to support
      suspensions and differential; front serves to support the
      suspensions and engine.
    • Aluminum sub-floor structural reinforcements.
  • Suspension

    • Standard Skyhook system.
    • Front: quadrilateral with forged aluminum hub carriers and
      struts, basic aluminum gas dampers with continuous damping
      variation and acceleration sensors on each wheel (Skyhook), coaxial
      helical springs.

    • Rear: with quadrilaterals with forged aluminum hub carriers and
      struts, additional radius bar for toe-in control; basic aluminum
      dampers with continuous damping variation and acceleration sensors
      on each wheel (Skyhook).

    • Front and rear suspension fitted with hollow bars that reduce
      roll and mass, and increase driving comfort.

  • Steering

    • Hydraulic steering box with tacho-sensitive servo assistance
      with on road steering ratio 64 mm/rev.
  • Steering diameter (from pavement to pavement): 10.7 m.

  • Transmission

    • Architecture with front transmission in unit with the engine,
      drive shaft, rear differential. 6-speed hydraulic torque converter
      gearbox (ZF 6HP26).
    • Transmission gear ratios: 1st gear 4,171; 2nd gear 2,340; 3rd
      gear 1,521; 4th gear 1,143; 5th gear 0,867; 6th gear 0,691; R
      3,403.
    • Asymmetric limited slip differential (25% in traction, 45% in
      release) with bevel drive with final ratio 3.73 (15/56).
    • Steel drive shaft, 69 mm diameter, articulated in two pieces
      with three constant-velocity joints, and supported at the centre
      with a bearing which is integral with a support cross member
      tightened to the chassis, with an interposed rubber ring.
    • Traction control and Maserati Stability Program (MSP)
      incorporating the traction control (ASR), release torque (MSR),
      anti-lock braking (ABS), and electronic brake distribution (EBD)
      systems.
  • Engine

    • 8 cylinders in 90 degree V, total displacement 4,691 cm3.
      Crankcase and cylinder heads in hardened and tempered aluminum
      alloy, crankshaft in hardened and tempered steel, balanced
      individually on 5 main bearings.
    • The timing system features double chain-driven overhead
      camshaft per bank; four valves per cylinder driven by hydraulic
      cups.
    • Continuous phase variator on intake camshafts.
    • Increased-diameter Nikasil-coated thin steel cylinder
      liners.
    • Wet sump lubrication, oil sump integral with crankcase, single
      oil bath pump.
    • Bosch integrated ignition and injection systems, and
      drive-by-wire accelerator.
    • Displacement: 4,691 cm3
    • Bore: 94 mm
    • Stroke: 84.5 mm
    • Compression ratio: 11.25:1
    • Maximum power output: 323 kW (440 CV)
    • Engine speed at maximum power output: 7,000 rpm
    • Peak torque: 490 Nm (50 kgm)
    • Engine speed at peak torque: 4,750 rpm
    • Maximum engine speed: 7,200 rpm
  • Dimensions and weight

    • Length: 4,881 mm
    • Width (without mirrors): 1,915 mm
    • Width (with mirrors): 2,056 mm
    • Height: 1,353 mm
    • Wheelbase: 2,942 mm
    • Front track: 1,586 mm
    • Rear track: 1,590 mm
    • Front overhang: 873 mm
    • Rear overhang: 1,066 mm
    • Trunk capacity: 173 l
    • Fuel tank capacity: 75 l
    • Dry weight (UE version): 1,887 kg
    • Kerb weight (UE version): 1,980 kg
    • Weight distribution: 49% front; 51% rear with car closed;
    • 48% front; 52% rear with car open
  • Performance

    • Top speed: 283 km/h with car closed
    • Acceleration 0-100 km/h: 5,4 s
    • Pick-up 80-120 km/h: 4.2 s
    • Stopping distance from 100 km/h-0: 35 m

Placeri italieneMaserati
a fost prezent la Salonul Auto de la
Frankfurt
cu o noutate foarte importantă: un cabrio lansat uşor
tardiv la începutul toamnei. Pornindu-se de la un Maserati
GranTurismo, de la care s-a renunţat la plafonul de metal pentru
unul din material textil, italienii au obţinut un nou model.

Maserati GranCabrio va fi pus în mişcare de acelaşi motor V8 de
4,7 litri şi 435 CP şi va fi cuplat la o transmisie manuală

Mai multe detalii,
pe pagina următoare
.

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