Infiniti Q45

From Infiniti press: Completely redesigned for 2002 and greatly enhanced in 2003, the Q45 receives several key enhancements to its exceptional combination of exciting performance, dramatic styling and luxurious interior for 2004. RearView Monitor is now standard on all models (previously only available with the Premium Package) and a new exterior color is available – Royal Pewter.

The 2004 Q45 continues to provide an array of standard and available performance and technology features, including a 340-horsepower V8 engine, voice-activated controls, an LCD information display screen, DVD navigation system, Climate Controlled Seats™, Intelligent Cruise Control and one of the most powerful headlight systems in the world.

The styling of the 2004 Q45 gives a strong impression of performance and what’s under the hood clearly delivers on that promise. Standard on every Q45 is Infiniti’s highly regarded VK45DE 4.5-liter V8, which is also utilized in the Infiniti M45 performance sedan and FX45 premium crossover SUV. In the Q45, the engine produces 340 horsepower and 333 lb-ft of torque – more horsepower than most V8 competitors such as the Lexus LS430, Mercedes S500 and BMW 745 sedans.

The VK45DE shares similar technology used in the award-winning VQ-series V6 engines found in the Infiniti FX35, G35 and I35 and features technology developed from years of research and racing experience. Titanium valves, modular cylinder heads, microfinished crankshaft, lightweight pistons, super-silent single stage cam drive chain and a hydraulically driven cooling fan are all optimized for maximum performance while maintaining low noise levels.

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.

The exceptional power of the 4.5-liter V8 is channeled through a standard high-torque capacity, electronically controlled 5-speed automatic transmission with manual shift mode, which has been revised for 2004 and features a high numerical final drive gear ratio of 3.133:1 for strong acceleration feel.

An Electronic Torque-Demand Powertrain Control system manages engine power, throttle position, and the transmission gear selections to optimize smoothness and performance.

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