Infiniti G37 Coupe, 2009
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.
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).
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.
The special production process has been developed for installation of the headlights to ensure tight build tolerances and an exact fit into the complex front fascia.
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.
Its gracefully curved door trims have been inspired by traditional Japanese ceremonial swords, while the trim inserts are modelled on Japanese Washi handmade paper. Other signature Infiniti features are the elegant analogue clock on the dashboard and purple backlighting of instruments and controls.
Thanks to its long wheelbase, there is room in the rear compartment for two adults with easy ingress and egress provided by the wide opening doors and the electric fold and slide front seats. The practicality and loading capacity of Infiniti G37 Coupé is further improved by the folding rear seats
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.
By continually altering valve lift and therefore the quantity of air in the combustion chamber it provides a more powerful combustion phase to increase torque and power. Best of all, as the valves control the intake rather than a conventional butterfly, response to throttle inputs is immediate. VVEL improves fuel economy and lowers emissions compared to standard valve lift systems.
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.
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 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.
Other standard features of the G37S include a Viscous Limited Slip Differential, recalibrated suspension settings and an enhanced braking system with four piston front brakes and two piston rears.
Standard and optional equipment
The Infiniti G37 Coupé has a full complement of user friendly - and above all, useful - standard equipment, plus options for those who want to make even more of a statement.
Standard features include the intelligent I-key with smart access and push button starter, a six-disc, seven-speaker audio system with an RCA AUX-in jack socket for MP3 players. Bluetooth phone connectivity and cruise control with speed limiter can all be operated via switches on the leather-trimmed multi-function steering wheel.
The Adaptive Front-light System (AFS) and "Scratch Shield" paint are also standard. Bi-Xenon headlamps are linked to steering inputs and automatically follow the path of the front wheels to provide a wide spread of light around corners and on winding roads. "Scratch Shield" paint incorporates a special highly elastic resin within the conventional clearcoat to increase the paint's flexibility. A car painted with "Scratch Shield" paint can exhibit up to five times fewer scratches that a conventional clearcoat when exposed to the same conditions.