From Infiniti press: Infiniti's unprecedented program of new product introductions continues with the debut of the all-new 2003 Infiniti FX45 premium crossover SUV, which combines aggressive styling, outstanding performance and handling and luxury car comfort and amenities in a truly breakthrough design. The all-wheel drive FX45 features a 315-horsepower 4.5-liter V8 based on the Infiniti's flagship Q45 performance luxury sedan powerplant. The new premium crossover SUV is also offered with a 280-horsepower 3.5-liter V6, badged as the FX35, with all-wheel drive or optional rear-wheel drive.
The FX45 is the latest of Infiniti’s ongoing vehicle introductions, following last year’s launches of the award-winning G35 sport sedan and G35 sport coupe and the M45 performance sedan. The FX45 went on sale in late January at 162 Infiniti dealers nationwide.
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 and M45 sedans, has been specially tuned for use in the FX45 and produces 315 horsepower (versus 340 hp in the Q45 and M45) and 329 lb-ft of torque (versus 333 lb-ft in the Q45 and M45).
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 standard all-wheel drive and optional rear-wheel drive V6 engine-equipped versions are designated as FX35 models.
Like the V8, the V6 has been specially tuned for use in the FX35, with a horsepower rating of 280 (versus 280 and 260 horsepower in the G35 coupe and sedan respectively). Torque is rated at 270 lb-ft (versus the G35 coupe and sedan’s 270/260 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.