The Infiniti FX, Infiniti’s dramatic venture into the crossover SUV field, enters the 2005 year with new state-of-the-art safety enhancements – including the revolutionary Lane Departure Warning (LDW) system that helps alert drivers to an unintended movement of the vehicle out of a designated traffic lane. The LDW system, which utilizes a small camera, speed sensor, an indicator and an audible warning buzzer, is offered on all 2005 FX45 and FX35 models. It is the first production car application of LDW in North America.

In addition to LDW, all 2005 Infiniti FXs are now equipped with standard roof-mounted curtain supplemental curtain air bags with rollover protection for front and rear outboard seat occupants.

Other enhancements to the FX lineup include the addition of dark chrome grille, headlight and taillight accents to the FX45, a new key fob design for the Infiniti Intelligent Key system and one new exterior color, Midnight Blue. Interior changes include a new standard etched aluminum trim.

Again for the 2005 model year the FX is available in two designations, each offering the practical utility of a SUV with the heart of a sports car. The FX45 is offered with a standard 4.5-liter V8 engine and all-wheel drive, while the FX35 comes with a standard 3.5-liter V6 and all-wheel drive.

In creating the FX, its designers sought what they called a “cool fusion” – the blending of a substantial, SUV lower body with the sleek, elegant upper body more reminiscent of a classic sports car or sports GT.

The FX exterior features a wide, aggressive stance with a long, sleek hood, sleek roof and a “taut canopy” greenhouse. The short front and rear overhangs provide SUV-level approach and departure angles, while also helping accentuate the long wheelbase, wide track and large tires (18-inch on FX35, 20-inch on FX45). The wide yet narrow headlights and taillights give the FX an “in-motion” look, with the taillights extending past the body slightly to help create aerodynamic downforce. The exterior design also includes a large Infiniti signature grille, standard fog lights, Xenon headlights and large, split dual tailpipes with chrome finishers.

All FX models utilize a modified version of the advanced FM (Front Mid-ship) platform, which positions the engine behind the front axle. This results in an optimized front-to-rear weight balance of 52:48, which factors in weight transfer during key handling maneuvers, such as entering and exiting corners.

The FX’s long 112.2-inch wheelbase and wide track (62.7-inches front, 64.6-inches rear) combine with large wheels and tires (standard 20-inch on FX45) to provide a stable foundation for on- or off-road driving – as well as a large interior for both passengers and cargo.

Two engines are available, starting with the high-performance power of the 4.5-liter DOHC V8. This advanced powerplant, also used in the Infiniti Q45 sedan, has been specially tuned for use in the FX45 and produces 315 horsepower and 329 lb-ft of torque.

Also offered is a 3.5-liter DOHC 24-valve V6 engine with aluminum-alloy block and heads and electronically controlled “drive-by-wire” throttle system.

The V6 has been tuned specifically for use in the FX35, with a horsepower rating of 280. Torque is rated at 270 lb-ft. A 5-speed automatic transmission with manual shift mode, designed for high torque capacity and light weight, is standard with both V8- and V6-equipped models. A special Snow-Mode function changes the throttle input algorithm in low-speed slippery road conditions (once activated by the driver) for enhanced traction control.

Infiniti’s advanced Vehicle Dynamic Control (VDC) system with Traction Control System is also standard on every 2005 FX. Vehicle Dynamic Control adjusts brake pressure and engine torque automatically in understeer, oversteer or slippery road surface situations, helping the drivers keep their intended paths.

The ATTESA E-TSTM (Advanced Total Traction Engineering System for All Electronic Torque Split) all-wheel drive system utilized on the FX45 and FX35 AWD uses an advanced torque split control strategy that automatically transfers optimum torque to the wheels according to road and driving conditions. It provides outstanding cornering capability due to optimum torque distribution for front and rear (50:50 up to 0:100). The system also provides high starting traction performance and smooth, stable acceleration, especially in snow-covered or off-road situations with the 50:50 torque split at standing start.

Standard braking system components include 4-wheel ventilated disc brakes, Brake Assist (BA) and Electronic Brake force Distribution (EBD). Responsive steering is provided by an engine-speed-sensitive power rack-and-pinion steering system.

Also available on FX45 models with the Intelligent Cruise Control System is a special feature of the standard Brake Assist system – Preview Braking. Brake Assist with preview function is designed to help improve brake response. Whereas normally braking is activated only when the driver recognizes the need and moves his or her foot to activate the brake pedal, the preview function utilizes the ICC sensors to identify sudden braking situations (by sensing the vehicle ahead in the same lane and the distance and relative speed from it) and “pre-pressurizes” the Brake Assist system before the driver steps on the brake pedal. This helps maximize braking response and performance by reducing the normal brake system activation time lag.

The five-passenger interior of the FX blends the comfort and amenities of a luxury car with an array of high tech driver and passenger features. In front are driver-oriented controls, available 10-way power-adjustable seat with memory function, driver-dedicated automatic air conditioning, information display monitor (6.3-inch standard, 7.0-inch with the Technology Package) and a three-spoke, leather-wrapped steering wheel with power tilt (moves in tandem with the instrument cluster) and telescope, integrated cruise and available steering wheel-mounted audio system controls.

The front passenger is treated to an available 8-way power-adjustable seat, passenger adjustable armrest and individual air conditioning control. Rear seat passenger features include personal reading lamps, center armrest with tray and storage, dual seatback pockets for storing DVDs and magazines, reclining seats and rear B-pillar mounted air conditioning vents for enhanced cooling performance.

Every FX model also offers exceptional utility, including a large cargo area with easy cargo accessibility, flip-down rear seats with quick-release levers conveniently located in the cargo area, three underfloor storage compartments and a lightweight, steel-reinforced composite rear cargo door with electromagnetic opener switch.

A number of special high tech features are also available, including an advanced DVD-based Infiniti Navigation System, Intelligent Key with keyless entry and engine start system and RearView Monitor.

The Intelligent Key is a new generation keyless system that eliminates the need to use the key fob when locking, unlocking and starting the engine.

The RearView Monitor projects a view of what’s behind the FX onto the navigation system monitor using a small camera mounted near the rear license plate (the system operates only when reverse gear is selected). Also available is Infiniti’s Intelligent Cruise Control System, which uses the brakes, throttle and laser sensors, to maintain a set distance between the FX and a vehicle in front of it.

The Infiniti Mobile Entertainment System features a DVD player with 6.3-inch roof-mounted rear LCD screen. A 6-CD audio system with six speakers is standard, while a 300-watt digital Bose premium audio system with 11 speakers is also available.

Other interior amenities include an Infiniti signature analog clock, driver and passenger one-touch up/down power windows (front and rear on FX45) and door locks, to name just a few.

Safety features found on every 2005 include standard dual-stage front supplemental air bags with seat belt sensors, front-seat side-impact supplemental air bags and front and rear seat curtain side-impact supplemental air bags with rollover protection for front and rear outboard seat occupants.

Also standard are 3-point ALR/ELR seat belts (driver’s side ELR only) and front seat belts with pretensioners and load limiters and adjustable upper anchors. It is also equipped with the LATCH (Lower Anchors and Tethers for CHildren) system.

The FX’s SUV-enhanced FM platform Zone Body construction is designed to help protect occupants in a collision by efficiently absorbing crash energy through use of front and rear crushable zones.

2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge
2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge
2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge
2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge
2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge
2005 Infiniti FX45
2005 Infiniti FX45. Click image to enlarge

Connect with Autos.ca