From Infiniti press: Infiniti’s flagship premium luxury sedan continues to push the automotive envelope for 2006 with a host of innovative features. The 2006 Infiniti Q adds a new Sport Model, which includes a sport-tuned suspension with Rear Active Steer and cast alloy 19-inch wheels and performance tires.
The 2006 Q45’s advanced 5-speed automatic transmission has been revised with wider gear spacing, added Downshift Rev Matching and a new torque converter design for better shift quality. In addition, the final drive has changed to 2.937:1.
Other enhancements include standard Bluetooth® Hands-Free Phone System and available Lane Departure Warning (LDW) system.
As always, the styling of the 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 4.5-liter V8, which is also utilized in the FX45 premium crossover SUV and the Infiniti M45 performance sedan. In the Q45, this engine produces 340* horsepower and 333 lb-ft of torque.
The engine features titanium valves, modular cylinder heads, microfinished crankshaft, lightweight pistons and a super-silent single stage cam drive chain. In addition, the V8 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 high-torque capacity, electronically controlled 5-speed automatic transmission with manual shift mode, which features a short, revised final drive gear ratio of 2.937:1 for strong acceleration. Downshift Rev Matching is added for 2006.
An Electronic Torque-Demand Powertrain Control system manages engine power, throttle position and the transmission gear selections to optimize performance and smoothness. For 2006, the transmission has been revised with wider gear spacing and a new torque converter design.