A genuine fusion of sports car and SUV, the FX’s dramatic styling sets it apart from the crowd. Built on Infiniti’s FM (front-midship) platform, FX blends sports car proportions with the character of a 4x4. That means a long bonnet and wheelbase, short overhangs and a coupé-like roofline, with the stance and strength of an SUV.
This, the second generation FX, follows Infiniti’s well-defined product strategy, by being inviting in every dimension. Quick to react to driver input, comfortable under all conditions… and extremely rapid, FX is a true Infiniti.
Infiniti’s designers and engineers’ overall goal in its development was to enhance its ‘sports car ability’ while adding refinement – without compromising either side of the equation. The creators of the new FX also wanted to give the vehicle a more ‘human’ feel, despite its mechanical strengths, by integrating the latest technology with owners’ lifestyles.
The new FX50S is designed to be highly adaptive to both the driver and driving conditions, utilizing a long list of Infiniti technologies and systems, including Variable Valve Event & Lift (VVEL) engine technology, Adaptive Shift Control, suspension with active Continuous Damping Control (CDC), Rear Active Steer, Around View Monitor, Intelligent Cruise Control (offering Full Speed Range feature) and Intelligent Brake Assist (IBA).
“FX is the perfect range topper for Infiniti. Exceptionally capable under all conditions, FX makes a real statement. Like the other Infiniti products being introduced to the European market, it will appeal to individuals and free thinkers who never take the default option of all,” says Jim Wright, Vice President, Infiniti Europe.
FX PRODUCT CONCEPT
In keeping with Infiniti’s well defined product strategy, the new FX is inviting in every dimension, from the nimble feel of its quick and controlled response to driver input, to the ride comfort provided by its Dual Flow Pass shock absorbers and quick response to body motion inputs, to the unique “Infiniti feel” under acceleration and braking.
Infiniti’s designers and engineers’ overall goal in the development of the second-generation FX crossover was to enhance its “sports car ability” while adding refinement – without compromising either side of the equation. The new FX’s creators also wanted to give the vehicle a more “human” feel, despite its mechanical strengths, by integrating the latest technology with owners’ lifestyles.
The new FX50 is designed to be highly adaptive to both the driver and driving conditions, utilizing a long list of Infiniti technologies and systems, including Variable Valve Event & Lift (V-VEL) engine technology, Adaptive Shift Control, Suspension with active Continuous Damping Control (CDC), Rear Active Steering, Around View Monitor, Intelligent Cruise Control (Full Speed Range) and Intelligent Brake Assist (IBA).
2009 INFINITI FX EXTERIOR
The new Infiniti FX continues with the breathtaking exterior styling and “sports car proportions” that helped the original stand out from all other performance luxury crossovers on the market. The FX blends the substantial lower body of an SUV with the long hood, stretched wheelbase, short front and rear overhangs, low overall height and elegant upper body more commonly found on sports cars – conveying its strong performance personality and breakthrough design architecture at a single glance.
For the new FX generation, distinctive side air vents have been added behind the front wheels. Also, the front wheels have been moved 35 millimeters forward (from the previous generation FX) and the front track has been widened by 50 millimeters – providing an even more pronounced performance stance.
The FX’s design starts with a new front end appearance, led by a lustrous Infiniti signature double-arch front grille, standard fog lamps and Bi-Xenon headlights. The FX50 also includes an automatic-on feature that switches on the headlights automatically on at dusk and a standard Adaptive Front lighting System (AFS). This system automatically controls the lighting pattern and directional aim, based on steering wheel angle and vehicle speed (the headlights can swivel headlights up to 17 degrees).
The FX’s new flat blade windshield wipers and wiper arm design optimize aerodynamic performance – helping improve wiping performance at high speeds and reducing wind noise at high speed. A new rain-sensing feature automatically tunes the wiper pace and speed according to the frequency of the precipitation (as detected by sensors).
The new side air vents are also functional, allowing air to flow from inside the engine compartment to outside the vehicle, reducing high under-hood air pressure. The side vents reduce front end lift by five percent for improved high speed stability.
The Infiniti FX’s aggressive silhouette is highlighted by a strong front-to-rear shoulder line, “taut canopy” greenhouse with chromed window frames, rearward-sloping roofline, integrated rear spoiler and polished roof rails. In the rear, the FX’s simple, bold appearance features LED taillights that extend beyond the body to help create aerodynamic down force and large dual exhaust outlets with chrome finishers.
The FX’s coefficient of drag has been improved to 0.35 from 0.37, with the engineers finessing even the smallest details to help manage airflow, including the front bumper sides, rear spoiler angle and taillight shape.
Under the FX’s polished, assertive styling is an equally advanced body structure. FX utilizes the rigid FM (Front Midship) platform architecture used on the Infiniti G 37, G37 Coupe. The FM platform offers sports car-like front-to-rear weight balance – 54/46 – for exceptional handling.
Additional development was undertaken to reduce weight and enhance body strength. For example, the FX’s aluminum front and rear door panels, which have the same strength and stiffness of conventional steel doors, are 20 kilograms lighter (total for all four doors), allowing the FX to maintain a power-to-weight ratio that is among the best in class. The FX weights 90 kilograms less in body structure weight alone. The new FX’s body is also 1.6 times more resistant to twisting and 3.4 times more resistant to bending than the previous generation FX design.
The new FX utilizes Infiniti’s advanced “Scratch Shield” paint, a special “self-healing” clearcoat paint designed to maintain its gloss-level over time. The paint “repairs” fine scratches, such as fingernail scratches under door handles, restoring the FX’s surface close to its original state. The FX50 is offered in seven exterior colors.
2009 INFINITI FX INTERIOR
The Infiniti FX’s sporty interior is designed to combine a driver-oriented cockpit/command center with a warm, modern, comfortable passenger environment – all wrapped in rich, natural materials. The high-tech interior design includes an Infiniti signature “double-wave” instrument panel and white-and-violet electroluminescent gauges.
The FX50 comes with a new front sport seat design with an adjustable air-type side support system for added lateral support during “sporty” driving sessions. The driver’s seat features 10-way power-adjustability with lumbar support and a 2-position Driver’s Seat Memory system, while the passenger’s seat is an 8-way power-adjustable design. Covered in a special quilted leather sew pattern, the front sport seats include adjustable thigh extensions, which add an extra level of comfort for drivers and passengers with long legs or for long distance travel. Whereas the front seats include an enhanced climate controlled system with heating and cooling functions for maximum comfort.
Standard on the FX50 is a new Automatic Driving Position System, which moves the seat, steering wheel and outside mirrors adaptively into the correct position. This system allows the driver to change the seat position while driving and keep the same viewpoint and relationship between the steering column and driver’s shoulder position.
The FX interior offers white-and-violet “Fine Vision” electroluminescent gauges with “gear-like” rings on the instrument cluster meters, standard 8.0-inch multi-information display monitor and signature Infiniti analog clock. The center console/shifter area is available in a black quartz finisher or special Curly Maple wood trim, inspired by classical violins, giving a sense of warmth throughout.
The FX interior also offers a leather-wrapped steering wheel and shift knob, along with front door pockets, front seatback pockets, dual front and rear cup holders, locking glove compartment and four assist grips. Other standard equipment includes four 12-volt power outlets, all power windows with one-touch up/down function and power door locks, cargo area tonneau cover and cargo multi partition net, along with aluminum pedals, power tilt and telescoping steering wheel, Infiniti Intelligent Key with push button start and a special 12-point “welcome lighting” system.
The thoughtful design behind the interior of the Infiniti FX extends to the available custom-engineered Bose sound system. The acoustic effect of nearly every interior detail was analyzed. Then, the 11-speaker system was customized for the unique acoustic environment inside the FX. As a result, each listener can enjoy music that approaches the power and emotion of a concert hall performance.”
Occupant comfort takes many forms in the new FX50, including the air that driver and passengers breathe. A standard filter, using fiber impregnated with natural grape seed polyphenol, has the ability to neutralize allergens that conventional filters cannot remove due to their incredibly small size (0.3 to 0.5 microns).
The FX50’s advanced Infiniti Navigation System features a 7-language media display and coverage of more than 30 European countries, along with an advanced RDS-TMC system with real-time traffic information system. A Voice Recognition system comes with the navigation system and includes voice activation for common climate control, navigation, audio system and phone functions.
The 2009 Infiniti FX is offered in three interior color schemes.
INFINITI FX50 DRIVETRAIN
The Infiniti FX50 features a new powerplant, which makes it debut on this model – an advanced 5.0-liter V8 that is mounted low in the chassis to help lower the FX50’s center of gravity. The engine design includes twin symmetrical air intakes, microfinished crankshaft, lightweight pistons, super-silent cam drive chains and an electrically driven cooling fan to help optimize performance.
The goals for the development of the FX50’s all-new VK50VE V8 started with outstanding power output – 390 horsepower (287kw) and 500 Nm of torque – a high rev limit, a powerful engine sound from a specially tuned exhaust and improved fuel economy versus the previous generation FX45. Even small details were evaluated in designing the new engine, including control of oil mist density in crankcase for reduced friction.
Performance is breathtaking: top speed is limited to 250 km/h (155 mph), with
o-100 km/h (0-62 mph) taking just 5.8 seconds. Over the combined cycle, the FX50 uses 13.0 l/100kms (21.7 mpg) and produces 310 g/km of CO2. The engine is fully compliant with Euro 5 emission level requirements.
One of the keys to the new V8’s impressive performance is the adoption of Infiniti’s patented Variable Valve Event & Lift (VVEL) valve control technology, which was first introduced on the Infiniti G37 Coupe. The VVEL system continuously adjusts valve event and lift amounts, enabling higher fuel efficiency with higher torque and improved emissions over conventional variable valve designs. The VVEL intake camshafts, which feature continuously variable lift control teamed with a Continuously Variable Valve Timing Control system (CVTC), allow for a 6,900 rpm redline and a high compression ratio of 10.9:1.
The FX50 is comes standard with a new seven-speed automatic gear box with Adaptive Shift Control (ASC) allowing a downshift blip control. FX50’s standard magnesium paddle shifters enable drivers to shift the transmission without releasing their hands from the steering wheel, helping maintain stability for the driver when accelerating or decelerating on winding roads.
Infiniti’s advanced ESP system with Traction Control System (TCS) is standard on all FX models. ESP adjusts brake pressure and engine torque automatically in understeer, oversteer or slippery road surface situations, helping the driver keep the intended path. A cancel switch allows the driver to switch off the ESP system when desired.
The FX50 is equipped with Infiniti’s intelligent four-wheel drive system called ATTESA E-TS (Advanced Total Traction Engineering System for All Electronic Torque Split), which uses an advanced torque split control strategy that automatically transfers optimum torque to the wheels according to road and driving conditions. The system provides outstanding handling due to optimum torque distribution from front to rear (50:50 up to 0:100). ATTESA E-TS also provides high starting traction performance and smooth, stable acceleration, especially in snow-covered or off-road situations with a 50:50 torque split at standing start.
When the FX50 accelerates from a standing stop, the ATTESA E-TS system provides power to all four wheels. Once up to speed, if the system’s sensors detect that all-wheel drive is not needed, up to 100 percent of the power is sent to the rear wheels. This rear-bias offers better handling balance and improved fuel efficiency. The system can then divert power forward at any time as traction/road conditions dictate, helping ensure that power always goes where grip is the greatest.
The FX50’s dynamic handling is a result of its suspension using light weight and aluminium components in the front and rear to reduce unsprung weight (weight not supported by the springs), helping to improve both ride and handling.
The new double-wishbone front suspension design, similar to that utilized on the Infiniti G37 and G37 Coupé, replaces the previous generation FX’s front strut-type suspension. The suspension’s upper and lower A-arms help provide superior control of a wheel’s motion, especially when the suspension compresses and extends, providing more travel than the previous strut design. The net result is a better ride and improved handling.
The FX50’s rear suspension utilizes the multi-link design from the previous generation, refined to weigh less and provide more wheel travel – again for improved ride and handling. A lightweight, high-strength steel rear subframe is utilized to isolate the FX’s body and its passengers from road noise and vibrations. Its compact design benefits to room in the rear passenger and cargo area. Large diameter stabilizer bars are utilized front and rear.
The suspension system also incorporates special “dual flow pass” shock absorber technology with rebound springs for responsive yet comfortable ride and firm, tight handling.
The new FX50 includes standard active Continuous Damping Control (CDC) system with special electronically controlled shock absorbers. Unlike conventional fixed damping force shock absorbers, the suspension with active Continuous Damping Control (CDC) takes the input from a variety of sensors and continuously alters the damping of the shocks to provide optimal ride and handling. The system features a driver-selectable switch with two settings, “Auto” and “Sport,” allowing the driver to control the shock valving levels.
The FX50’s standard Rear Active Steer system is the first of its kind available in an SUV. Unlike passive rear steering systems, this design features precise, electronic motor-driven control to turn the rear wheels up to one degree, helping generate a nimble steering response at low speeds and enhance stability at high speeds. Rear Active Steer moves the FX50’s rear wheels in accordance with the front-wheel steering angle and vehicle speed, rather than passively following the front wheels. The result is a vehicle that is able to change direction with improved quickness, precision and stability.
The new FX maintains its small turning radius (5.6m) despite its larger wheel and tire package. Its engineers focused on improving steering feedback from the advanced speed-sensitive rack-and-pinion power steering system and reduced “play” in the steering mechanism for more direct vehicle response to steering input.
Secure braking performance is provided by the FX50’s 4-wheel ventilated disc brakes with Brake Assist (BA) and Electronic Brake force Distribution (EBD). The FX50 system features 4-piston front/2-piston rear calipers, similar to those utilized on the new Infiniti G37 Coupé, and large brake rotors (355x22 mm front/350x20 mm rear). Braking system dimensions and high thermal capacity have been tailored specifically to European driving needs, providing a secure and stable feeling at very high speeds and high deceleration rates.
The FX50 features metallic-finish six-spoke cast-alloy 9.5Jx21-inch wheels made by Enkei. These wheels are created using a special type of ultra-lightweight casting and are as light as a competitor’s 18-inch wheels. They are mounted with 265/45R21 performance tires.
Chassis and driving dynamics
Under the FX’s assertive exterior is an equally advanced body structure. FX uses the rigid FM platform architecture used on the Infiniti G37 and EX37. The FM platform offers sports car-like front-to-rear weight balance for exceptional handling.
Additional development was undertaken to reduce weight and enhance body strength. For example, the FX’s aluminum front and rear door panels, which have the same strength and stiffness of conventional steel doors, are 20 kilograms lighter (total for all four doors), allowing the FX to maintain a power-to-weight ratio that is among the best in class.
The new FX’s body is also 1.6 times more resistant to twisting and 3.4 times more resistant to bending than the previous generation FX design. As well as boosting handling, the rigid body benefits to NVH performance.
The new double-wishbone front suspension design, similar to that found on the G37 and EX37, replaces the previous generation FX’s front strut-type suspension. The suspension’s upper and lower A-arms help provide superior control of a wheel’s motion, especially when the suspension compresses and extends, providing more travel than the previous strut design. The net result is a better ride and improved handling.
At the rear, FX uses the multi-link design from the previous generation, refined to weigh less and provide more wheel travel – again for improved ride and handling. A lightweight, high-strength steel rear subframe isolates the FX’s body and its passengers from road noise and vibrations. Its compact design benefits rear passenger and load space. Large diameter anti-roll bars can be found front and rear.
The suspension system also incorporates special dual flow pass shock absorber technology with rebound springs for responsive yet comfortable ride and firm, tight handling.
FX50S and FX37S suspension feature standard active Continuous Damping Control (CDC) system with special electronically controlled shock absorbers. Unlike conventional fixed damping force shock absorbers, suspension with active CDC takes the input from a variety of sensors and continuously alters the damping of the dampers to provide optimal ride and handling. The system features a driver-selectable switch with two settings – Auto and Sport – allowing the driver to control the valving levels.
FX50S’s standard Rear Active Steer system is the first of its kind available in an SUV. Unlike passive rear steering systems, this design features precise, electronic motor-driven control to turn the rear wheels up to one degree, helping generate a nimble steering response at low speeds and enhance stability at high speeds.
Rear Active Steer moves the FX50S’s rear wheels in accordance with steering input and vehicle speed, rather than passively following the front wheels. The result is a vehicle that is able to change direction with improved quickness, precision and stability.
The new FX maintains its small turning radius (5.6m) despite its larger wheel and tyre package. Infiniti engineers focused on improving steering feedback from the advanced speed-sensitive rack-and-pinion power steering system and reduced play in the steering mechanism for more direct vehicle response to steering input.
An essential element of its crossover role is the adoption of Infiniti’s ATTESA E-TS (Advanced Total Traction Engineering System for All Electronic Torque Split) All-Wheel Drive system which uses an active torque distribution management system with an active centre clutch for smooth starts, greater grip and better manoeuvrability on slippery surfaces without compromising the vehicle’s rear-wheel drive performance characteristics on dry roads.
By constantly adjusting the power – sending anything from 50 per cent to the front, to up to 100 per cent to the rear – the system generates greater control without sacrificing sportiness and true performance dynamics.
Unlike permanent 4x4 systems, which deaden the steering feel and dull the driving dynamics, the electromagnetic torque transfer at the heart of ATTESA E-TS Intelligent AWD’s system permits an element of oversteer for a more sporting drive.
Intelligent All-Wheel Drive works with Electronic Stability Program (ESP) and the Limited-Slip Differential, constantly shifting torque as FX encounter changes in the road conditions when, within milliseconds, it will apportion power to the wheels with the most grip.
The system is most active off the highway. As FX navigates snow, sand or mud, power is continuously apportioned to the wheel or wheels with the best traction.
Secure braking performance is provided by ventilated disc brakes front and rear with Intelligent Brake Assist (IBA) and Electronic Brake force Distribution (EBD). An integral part of Intelligent Cruise Control (standard on FX50S, optional on FX37 and FX37S), when IBA detects that a collision with a car in front is imminent it first warns the driver and then brakes the car itself.
The braking system features four-piston opposed front/two-piston opposed rear calipers, similar to those found on the new Infiniti G 37S, and large brake discs (355x32 mm front/350x20 mm rear). Brake dimensions and high thermal capacity have been tailored specifically to European driving needs, providing a secure and stable feeling at very high speeds and high deceleration rates.
FX50S and FX37S feature standard metallic-finish six-spoke cast-alloy 9.5J x 21-inch wheels made by Enkei. These wheels are created using a special type of ultra-lightweight casting and are as light as a competitor’s 18-inch wheels. They are mounted with 265/45R21 performance tyres. FX37 has 20-inch alloy wheels with all-season tyres as standard.
TECHNOLOGY AND SAFETY SYSTEMS
The new Infiniti FX50 offers a wide range of advanced available technology and safety systems, helping reinforce the strong sense of communication between the FX50 and its driver – as well as providing a secure and inviting feel.
The FX50 comes standard with the unique Infiniti Around View Monitor utilizes four small superwide-angle cameras – mounted on the front, side and rear of the FX50 – to project an all-around view of potential objects on every side of the vehicle, helping reduce blind spots when parking. The system uses advanced image processing to provide a unique “Birds-Eye View” of the vehicle, making it easy for the driver to position the FX50 for parallel parking by simultaneously confirming the exact placement of the front and rear of the vehicle. The system includes front and rear sonar sensors for camera assistance, also displayed in an easily understandable fashion on the display.
The FX50’s standard Intelligent Cruise Control (Full Speed range) system combines the brakes, throttle and laser rangefinder with the cruise control system to automatically maintain a set distance between the FX50 and a vehicle in front of it. FX50’s Intelligent Cruise Control operates in “Full Speed Range” (from 0km/h) hence reducing the driver’s workload in congested traffic as well as smooth long distance travel. The Intelligent Cruise Control assists the driver with acceleration and deceleration actions and stops the FX50 if traffic requires.
Standard on the FX50’s, Intelligent Brake Assist (IBA) system uses the laser rangefinder from the Intelligent Cruise Control’s (ICC) system and analyzes closing speeds to a vehicle ahead to help prevent or reduce damage caused by a rear-end collision. If a forward collision is imminent with the vehicle in front of the FX50 and the driver must take immediate avoidance action, the system sounds a warning to prompt driver action. When a rear-end collision cannot be avoided by the driver’s action, the system activates the brakes to decelerate the vehicle, thereby helping to reduce damage resulting from the collision. IBA can apply up to 0.5g braking force (1.0g is considered close to the maximum possible braking force).
The FX’s enhanced FM platform Zone Body Construction is designed to help protect occupants in a collision by helping to absorb crash energy through use of front and rear crushable zones. In a high-speed frontal collision, for example, the crushable zone crumples while the engine is designed to move under the occupant compartment. This has the effect of expanding the crushable zone, thereby helping to reduce deceleration g-force and simultaneously helping minimize cabin deformation, especially in the lower leg area. In offset impacts, the body construction helps decrease the amount of cabin deformation. Special high-resistance steel is used for light weight and improved strength.
As with all Infiniti vehicles, significant time was spent to ensure excellent passenger safety. The first-generation FX received 5 Stars for all measures in the U.S. National Highway Traffic Safety Administration (NHTSA) New Car Assessment Program (NCAP) testing, and the new second-generation FX is expected to offer similar or better occupant protection.
Other standard safety features found on the FX50 include a seat belt reminder system; airbags for driver and front passenger with front hip-thorax side airbags and front-to-rear curtain airbag for rear passengers. Also standard are 3-point front seat belts with pretensioners and load limiters, front seat Active Head Restraints.
The FX50 also features a breakaway brake pedal and double-wall bulkhead construction to help reduce lower leg injuries and a breakaway construction of the propeller shaft (connected with the engine-drop function).
The FX50’s standard Tire Pressure Monitoring System (TPMS) uses pressure sensors with transmitters mounted inside each wheel, which transmit data by radio wave to a control module, sending tire pressure information to a center display indicator on the FX50’s information panel. A warning lamp and display indicates when a low tire pressure condition (less than 75 percent of normal pressure) is detected.
Standard and optional equipment
As expected with an Infiniti, FX offers a full complement of standard equipment including seven speed automatic transmission, Intelligent All-Wheel Drive, six airbags and speed sensitive power steering.
Every FX also features the Infiniti I-Key with smart access and push button starter. As soon as the vehicle identifies a pre-programmed I-Key in the vicinity, the door can be opened and the car started without the key needing to leave a pocket or handbag.
Personal settings for the driver’s seat, steering column and exterior mirrors can be programmed into the key so that the key holder won’t have to reposition anything if the car has been driven by anyone else.
Also standard are darkened rear privacy glass, wood interior finish, a six-disc and seven-speaker CD audio system with an RCA AUX-in jack socket for MP3 players, rear view camera with front and rear parking sensors and 7-inch colour display, Bluetooth mobile phone connectivity, cruise control, power seats (10-way driver’s; 8-way passenger’s), auto-dimming rear view mirror, automatic lights and wipers, electric glass sunroof and integrated fog lamps. The leather-trimmed steering wheel incorporates controls for the audio system, cruise control and telephone.
Thanks to the standard Adaptive Front-light System (AFS) the 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.
Like all Infiniti models sold in Europe, FX offers standard “Scratch Shield” paint. A special highly elastic resin has been combined with a conventional clearcoat to increase the paint’s flexibility allowing the finish to exhibit up to five times fewer scratches that a conventional clearcoat when exposed to the same conditions. When exposed to heat, “Scratch Shield” paint repairs fine scratches, restoring painted surfaces close to their original state.
The FX37S version adds active Continuous Damping Control, 14-way power adjustment for the driver’s seat, front sports seats and 21-inch alloy wheels. The FX37S and FX50 can be easily indentified by their dark chrome exterior trim and smoked headlamps.
Options on the FX37 models include black lacquer and aluminium trim, Multimedia pack (DVD navigation, voice recognition, BOSE sound system), Around View Monitor, metallic paint and a temporary spare wheel (replacing standard tire repair kit). The Around View Monitor uses small cameras mounted at the front, rear and in the door mirrors of FX to project an all-round view of potential obstacles on every side of the vehicle. A natural extension of Infiniti’s rear view parking camera, the Around View Monitor uses the standard seven inch colour screen to display a bird’s eye view of the car as it parks, enabling the driver to negotiate a tight parking spot without mishap.
The state of the art audio system available with the Multimedia pack is the result of a long term relationship with Bose® corporation. The acoustic effect of nearly every interior detail was analyzed. The 11-speaker Bose® sound system is custom designed specifically for the unique acoustics of the Infiniti EX 37 cabin to help reproduce music with clarity and spaciousness. Bose® and Infiniti engineers have worked together in order to cleverly integrate the bass module in the spare wheel, hence listeners can enjoy music with depth and presence while optimizing load space.
Also available is Intelligent Cruise Control operating in “Full Speed Range”. ICC system uses brake, throttle and laser sensors to help maintain a set distance between FX and the car in front. The software allows ICC to work from 0km/h to 180km/h thanks to the “Full Speed Range” feature.
FX50S wants for virtually nothing. The multimedia pack (with a larger 8 inch display) and Around View Monitor are standard, as is the BOSE sound system. Intelligent Cruise Control and Intelligent Brake Assist are also standard as is Active Rear Steer. The only options are metallic paint, the black lacquer/aluminium interior trim and a temporary spare.
A genuine fusion of sports car and SUV, the FX37’s dramatic styling – shared with the FX50 – sets it apart from the crowd. Built on Infiniti’s FM (front-midships) platform, the FX37 blends sports car proportions with the character of a 4x4. That means a long bonnet and wheelbase, short overhangs and a coupé-like roofline, with the stance and strength of an SUV.
The Infiniti FX37 is powered by the 3.7-litre V6 petrol engine delivering 320PS at 7,000 rpm and a healthy 360Nm of torque (comparable figures for the V8 FX50 are 390PS and 500Nm).
A member of the multi-award winning VQ engine family, the all-aluminium 24-valve twin cam unit features a bed-plate construction. A technique that has been used in motor racing for many years, the resulting two-part construction of the cylinder block is more rigid than a single piece casting.
It is a configuration that signifies a high-performance sporting engine designed for the highest strength and reliability. Other benefits include reduced vibration levels and higher engine speeds to be reached consistently without damage.
The engine, which is fully Euro 5 compliant, incorporates VVEL (Variable Valve Event and Lift) technology to optimise efficiency and, in turn, the balance between power, response, fuel efficiency and emissions. VVEL continually alters valve lift and therefore the quantity of air in the combustion chamber. The result is a more powerful combustion phase increasing torque and power.
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.
FX37 comes with a new seven-speed automatic transmission with Adaptive Shift Control (ASC) as standard providing a wider spread of transmission ratios for improved fuel consumption and drivability. The seventh speed is effectively an overdrive ratio, returning improved fuel economy on a steady throttle without compromising in-gear flexibility for overtaking.
Shift points are tuned to keep the engine in the largest part of the torque curve, ensuring there is always a healthy reserve when the driver wants to overtake. The linked ASC system switches between three different programs depending on input from the major control systems throughout the car. Manual shifts can be made via paddle shifts mounted behind the steering wheel.
Suspension design is fully independent and uses lightweight aluminium components to reduce weight as much as possible. With a double wishbone set up at the front, a multi-link arrangement mounted on a subframe behind and an extremely rigid bodyshell, FX37 combines agility with exceptional ride comfort.
In keeping with its crossover role, FX37 features Infiniti’s ATTESA E-TS (Advanced Total Traction Engineering System for All Electronic Torque Split) four-wheel drive technology. The system uses an active torque distribution management system with an active centre clutch for smooth starts, greater grip and better manoeuvrability on slippery surfaces without compromising the vehicle’s rear-wheel drive performance characteristics on dry roads. Torque distribution is anything from 50:50 up to 0:100, front to rear. Unlike permanent 4x4 systems, which can deaden the steering feel and dull the driving dynamics, the electromagnetic torque transfer at the heart of ATTESA E-TS intelligent 4WD’s system permits an element of oversteer for a more sporting drive.
When FX37 accelerates from a standing start, ATTESA E-TS system provides power to all four wheels. Once up to speed, if the system’s sensors detect that all-wheel drive is not needed, up to 100 percent of the power is sent to the rear wheels. This rear-bias offers better handling balance and improved fuel efficiency.
In common with the entire Infiniti range, FX37 has been fine tuned for European road conditions. As well as revised settings for the suspension and steering and enhanced NVH protection, FX37 has been given bigger brakes better to cope with Europe’s higher average speeds. This, in turn, has allowed 20-inch alloy wheels to be fitted as standard.
An all-new design, the latest generation FX range adopts Infiniti’s signature double-arch grille and ‘double wave’ frontal styling. The profile is dominated by a strong shoulder-line set off by functional side vents behind the front wheels while the swooping roofline is topped by roof rails, which are fitted as standard. At the rear, distinctive LED taillights wrap around the side of the vehicle.
Helping to contribute to a low overall weight, all four doors are made from aluminium.
The interior provides a driver-oriented cockpit combined with a luxuriously sophisticated passenger compartment. Natural materials including wood and quilted leather can be found throughout while the dashboard features the Infiniti signature double-wave design. Three interior colour schemes are offered: black plus duo-tone beige and grey or brown and black. Power adjustable front seats are ventilated for the ultimate in comfort at all times.
Other items of standard equipment include Intelligent Key with keyless go, and Bi-Xenon headlamps with Adaptive Front lighting System (AFS) which automatically controls the aim and patterns of the headlights, based on steering wheel angle and vehicle speed (the headlights can swivel headlights up to 17 degrees).
Also available is the Intelligent Cruise Control with Full Speed Range incorporating technology that maintains a set distance between the FX37 and the vehicle in front in a speed range of 0 to 180 km/h, thus reducing the driver’s workload in traffic.
An extensive equipment list also includes an electric sunroof, rear privacy glass, front fog lamps, light and rain sensors and a total of six airbags – front side and curtain.
The Infiniti FX37 comes standard with a rear view parking camera and display, full telephone communication via Bluetooth, an in-dash six-disc CD changer plus an Aux-In socket for mp3 players complete the package.
In common with other Infiniti models, FX37 has the advanced ‘Scratch Shield’ paint. A special highly elastic resin has been combined with a conventional clearcoat to increase the paint’s flexibility to produce ‘self healing’ characteristics.
There are two major option packs: Sport and Multimedia. The Sport pack includes active Continuous Damping Control system with electronically controlled shock absorbers that continuously alter the damping settings to provide optimal ride and handling.
The pack also incorporates sports seats with inflatable cushions for added bolster and upper body support and 21-inch alloy wheels. Visual differences include smoked headlamps, black roof lining and the availability of black trim finishers inside the cabin.
The multimedia pack is based around a top-end Bose 11 speaker audio system and the latest satellite navigation system with voice recognition featuring an 8-inch full colour display on which it can display Bird View navigation and real time traffic information.
Also available as an option is Infiniti’s Around View Monitor which uses small cameras mounted at the front, rear and on the sides of the vehicle to project an all-round view of potential obstacles.
A natural extension of Infiniti’s rear view parking camera, Around View Monitor uses the colour monitor to display a bird’s eye view of the car as it parks, enabling the driver to negotiate tight parking spots with ease.
“FX37 is a significant model for Europe and we expect it to account for as much as 80 per cent of FX sales,” says Jim Wright, Vice President Infiniti Europe. “By combining excellent handling and punchy performance with genuine luxury and SUV practicality, FX37 will appeal to customers who appreciate quality and individuality.”
Infiniti FX35 - $42,150
- 303-hp V6
- Scratch Shield paint
- Leather-appointed interior
- Infiniti Intelligent Key
- 11-speaker Bose® Premium Audio system
- Auxiliary audio input jack
- RearView Monitor
Infiniti FX35 AWD - $43,600
- Includes FX35 standard equipment
- Intelligent All-Wheel Drive (AWD)
Infiniti FX50 AWD $58,400
- Includes FX35 AWD standard equipment
- 390-hp V8
- Quilted leather-appointed seating
- Hand-stained Maple wood
- Infiniti Hard Drive Navigation System
- Around View Monitor
- Bluetooth® Hands-free Phone System