Saturday, March 6, 2010

Infiniti G37 Coupe

Infiniti G37 Coupe


The Infiniti G37 Coupé offers dramatic performance in a thoroughly seductive shape. Although sharing a great deal of hardware with the Infiniti G37 Sedan, the Coupé is designed to appeal to different buyer.

The dynamic styling allied to its obvious performance potential will appeal to successful individuals who appreciate beautiful design and enjoy driving. They aren't prone to following the herd… and they might not even currently drive a coupé.

When he does step into a Infiniti G37 Coupé, he'll find the exterior styling is matched by a refined interior. And when he starts the engine, he will find a true performance car that delivers what it promises. Top speed is limited at 250 km/h (155 mph), while 0-100 km/h takes just 5.8 seconds (on M/T version).

There are 3 versions of the Infiniti G37 Coupé on offer - the well equipped G37 Coupé, the more luxurious GT version with leather upholstery, and the sport-oriented S version with 4-Wheel Active Steer system, a Viscous Limited Slip Differential (VLSD) and sports suspension settings among other changes.

Exterior styling
A long bonnet, short overhangs and dramatically raked roof line give the Infiniti G37 Coupé a silhouette that sets it apart from rival products based more heavily on their saloon counterparts.

Designed as a modern sports car without compromise, the Infiniti G37 Coupé has elegant and sophisticated proportions allied to an expressive, curving shoulder-line to give a feeling of movement even when stationary. The shorter and lower roofline also helps accentuate the Coupé's low centre of gravity and gives a clear indication that this is essentially a rear-wheel-drive car.

Curving 'character' lines at the front of the car mimic the lines of the front wings and help give the Coupé a more athletic and aggressive stance, while the wave-style aluminium bonnet incorporates a natural power dome to accentuate the potency of what lies beneath.

Thanks to its shorter body, the Coupé's rear shoulder is even more muscular than the Sedan's, while the integral rear lip spoiler is more pronounced. The jewel-like taillights feature LED lamps to reinforce the Coupé's high-tech appeal.

Interior environment
The Infiniti G37 Coupé provides a sporting cockpit environment for the driver and a luxuriously open space for its passengers. The dashboard and centre console, complete with seven-inch colour display, adopts Infiniti design DNA with a 'double wave' upper section linked to a central vertical spine for a feeling of solidity. Textured aluminium trim inserts can be found on the centre console, the instrument binnacle and the door panels.

The Engine and powertrain
Infiniti's latest 3.7-litre V6 is a potent, high revving, 24-valve twin cam unit producing 235 kW at 7,000 rpm (320 PS) and an impressive 360 Nm of torque at 5,200 rpm.
Constructed from lightweight aluminium, the engine features a two-part bed-plate construction which is more rigid than a single piece casting for reduced vibration levels. It also permits sustained use at higher revs: the V6 is red-lined at 7,500rpm.

The VQ37 unit features VVEL (Variable Valve Event and Lift) technology to optimise efficiency and, in turn, the balance between power, response, fuel efficiency and emissions.

Precise mapping of the ECU, meanwhile, helps the engine provide a progressive 'swell' of power and torque, providing a 'building wave' of acceleration rather than a peaky power delivery.

It delivers a top speed of 250 km/h (155 mph) with 0-100 km/h (0-62 mph) taking 5.8 seconds (on M/T version). Fuel economy over the combined cycle is 10.5 l/100kms (26.9 mpg) while the Coupé has a CO2 figure of 249 g/km. The engine is fully compliant with Euro 5 emission level requirements.
As well as a smooth shifting six-speed manual transmission, the Infiniti G37 Coupé is available with a new seven-speed automatic option with Adaptive Shift Control (ASC) and magnesium paddle shifters mounted behind the steering wheel.


Chassis and driving dynamics
The Infiniti G37 Coupé uses the second-generation version of Infiniti's FM platform. The 'front midship' engine location sees the compact V6 mounted in the front of the car, but as low and as far back as possible, with most of the block behind the front axle line. The result lowers the centre of gravity and helps to deliver the optimum front to rear weight distribution.

The fully independent suspension uses lightweight aluminium components to reduce weight as much as possible. A double wishbone set up at the front and a subframe-mounted multi-link arrangement at the rear allied to an extremely rigid body shell, gives the Infiniti G37 Coupé agile handling perfectly in keeping with its performance potential.

All versions of Infiniti G37 Coupé come with Electronic Stability Program (ESP), while the power-assisted four-wheel vented disc brakes have a four-channel, four-sensor Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD) and Brake Assist (BA) as standard.

To enhance the braking feel, the Infiniti G37 Coupé uses a 'link-design' pedal which becomes progressively firmer as g-forces and vehicle speed increases. As a result, the driver has a more direct sensation of the forces acting on the car as he brakes from high speed, as well as the benefit of increased assistance. At lower speeds the brake is easier to operate but with more travel relative to assistance.

The power steering system is a vehicle-speed-sensing type with a twin-orifice structure, which provides optimum steering effort at both high and low vehicle speeds.
The sports oriented G37S version has a number of chassis changes in keeping with its sharper profile. The principal enhancement is the addition of the 4-Wheel Active Steer (4WAS) system which helps improve handling performance still further by varying the front steering ratio and adjusting the geometry of the rear suspension according to steering input and vehicle speed.

The Safety
High levels of passive safety were a priority at the design stage. As a result, the Infiniti G37 Coupé has a full complement of six airbags, with dual-stage front airbags, seat belt sensors and passenger seat occupancy sensor. The front seats incorporate hip and thorax bags, while there are front-to-rear curtain airbags for protection in a side impact.

The standard is a pop-up bonnet, designed to offer greater crash protection for pedestrians. In the event of a collision, a small pyrotechnic charge raises the trailing edge of the bonnet close the lower edge of the windscreen. This creates a larger buffer between the bonnet and the top of the engine, providing a more yielding surface which in turn helps to reduce potential injuries.