From Infiniti press: 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.
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 or rear-wheel drive.
Two engines are available again in 2005, 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.
The engine's advanced design includes titanium valves, modular cylinder heads, microfinished crankshaft, lightweight pistons, super-silent single stage cam drive chain and a hydraulically driven cooling fan to help optimize performance.
In addition, the VK45DE is outfitted with a variable length air induction system and Continuously Variable Valve Timing Control System (CVTCS) to enhance the engine’s power delivery and operation efficiency.
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. Both the all-wheel drive and rear-wheel drive V6 engine-equipped versions are designated as FX35 models.
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-TS™ (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.