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All-New Second-Generation QX56 SUV Features Advanced Technology
It starts with a breathtaking presence, a calm strength derived of clean, fluid lines that attract and hold your attention. It continues with the highest level of luxury, not just for the driver and front seat passenger, but all occupants - world class, personalized control over their environments for passengers in every seat in the house. Add in an exceptional driving experience provided by a powerful, yet efficient V8 engine design and available Hydraulic Body Motion Control system. Then top it all off with intuitive functionality, which anticipates and responds to the users’ needs and desires. Introducing the all-new 2011 Infiniti QX, the latest example of inspired design, performance, technology and craftsmanship from Infiniti. Available in two models, the QX56 2WD and QX56 4WD, it is scheduled to go on sale at Infiniti retailers nationwide in summer 2010.
“Following closely on the introduction of the all-new 2011 Infiniti M, the 2011 Infiniti QX gives us an incredible presence in full-size performance luxury vehicles - perfect for buyers seeking style, comfort, roominess and driving exhilaration,” said Ben Poore, vice president, Infiniti Business Unit. “Like the new M, the QX offers a range of available innovative technology, including Blind Spot Warning and an advanced Hydraulic Body Motion Control system.”
The second-generation Infiniti QX56 has been totally redesigned from the platform up. Its new high-stiffness frame structure enhances ride comfort while reducing noise, vibration and harshness. The new 5.6-liter V8 engine combines the responsive acceleration of Infiniti’s VVEL (Variable Valve Event & Lift) technology with the efficiency of Direct Injection Gasoline (DIG) and 7-speed automatic transmission. With 400 horsepower and 413 lb-ft of torque, the QX can handle tasks such as towing boats or trailers (8,500-pound towing capacity, when properly equipped), while also offering 14% better fuel economy (EPA Combined) than the previous generation QX.
Inside the distinctive QX body is an interior long on luxury, including standard Infiniti Hard Drive Navigation System, Around View Monitor, Bose 13-speaker Premium Audio System, available perforated semi-aniline leather seating and an available Tri-Zone Entertainment System with dual 7-inch color monitors, which allows different sources to be played at the same time. The 2011 QX also offers ample 1st row and class-leading 2nd row roominess.
The 2011 Infiniti QX is conceived to attract and hold viewers’ attention, conveying its underlying sense of power and strength. The design is dynamic, its size capable of transporting up to eight adults and their belongings with spacious elegance. The bold front chrome grille is flanked by automatic on/off bi-functional xenon headlights with windshield wiper interlock and integrated front fog lights. Adaptive Front lighting System (AFS) with auto-leveling headlights and headlight washers are also available.
The new QX features revised dimensions versus the previous generation - 1.4-inches longer and 1.1-inches wider. While overall vehicle height has been reduced by 2.0 inches for the 2WD model and 2.9 inches on the 4WD model, interior headroom measurements are virtually unchanged from the previous generation primarily due to the implementation of a more efficient interior overhead trim design. A front underbody spoiler, functional rear liftgate spoiler and redesigned side mirrors help provide aerodynamics of 0.36 Cd and zero lift. The QX’s strong presence is accented by the powerful wheel and tire combinations - standard 20-inch and available 22-inch - and a palette of six distinctive exterior colors.
“The look is clearly Infiniti with its signature Infiniti grille, broad shoulders and large greenhouse,” said Poore. “It’s rugged, sophisticated and completely captivating.”
The 2011 Infiniti QX’s all-new body and frame are designed to provide enhanced body stiffness and reduced vibration versus the previous QX design. Structural changes include a new high-stiffness frame structure with enlarged side rail section width, redesigned connecting structures between each crossmember and side rails, an integrated rear hitch member, improved stiffness of the cabin mounting points and a special rear body ring structure around the tailgate.
The second-generation Infiniti QX also offers new engine and transmission designs - delivering, a combination of power, efficiency and refinement worthy of the Infiniti name. The new 5.6-liter 32-valve DOHC aluminum-alloy V8 features Infiniti’s advanced VVEL (Variable Valve Event & Lift) technology and new Direct Injection Gasoline (DIG) system.
The VVEL system combines hydraulic-controlled variable valve timing and electronically controlled variable valve lift on the intake side to help improve performance and response. Throttle response is enhanced by directly controlling the intake valve, rather than using the traditional method of controlling intake with the throttle valve. The VVEL system also offers improved emissions and fuel efficiency (over non-VVEL designs) by substantially reducing the intake resistance that occurs when the engine’s throttle valve opening is narrowed and output is low. The new DIG system provides better wide-open throttle performance and improved fuel economy and emissions performance by reducing engine knock, improving combustion stability and offering more precise injection control.
The engine is rated at 400 horsepower and 413 lb-ft of torque, compared with 320 horsepower and 393 lb-ft of torque produced by the 2010 QX’s non-VVEL/non-DIG V8. With a 25% increase in horsepower, the 2011 QX does not sacrifice fuel economy, which increases by up to 18% (Highway, versus the 2010 QX) to 14 mpg City, 20 mpg Highway and 16 mpg Combined for both the QX56 2WD and 4WD models.
Also contributing to the enhanced fuel economy is the 2011 QX’s standard 7-speed automatic transmission with Adaptive Shift Control (ASC) and manual shift mode with Downshift Rev Matching (DRM). Versus the 2010 QX’s 5-speed automatic, the new 7-speed transmission boasts a wider range of gear ratios, a variable lockup torque converter, a new improved shift schedule and a new automatic transmission fluid warmer designed to reduce fuel consumption at start up.
The QX is offered in rear-wheel drive and four-wheel drive, with the 4WD model featuring Infiniti’s proven All-Mode 4WD system with Auto, 4H and 4L modes. The system is designed to distribute torque to all four wheels when road conditions warrant (up to 50 percent can go to the front wheels on demand), helping to enhance traction.
A new Hydraulic Body Motion Control system is available on both 2WD and 4WD models as part of the Deluxe Touring Package (which also includes 22-inch wheels and tires and a number of other features). The system helps to reduce body lean in turns, resulting in improved ride comfort for passengers in all three rows. Suspension travel is automatically controlled by hydraulic chambers integrated into each shock absorber. The chambers are cross-linked with piping, allowing for the transfer of hydraulic fluid, managed seamlessly by nitrogen-charged accumulators, from one side of the vehicle to the other. This enables the system to vary suspension travel independently on either side of the vehicle, thereby counteracting body lean and creating a luxurious, flat ride” previously unavailable to drivers in this segment.
Braking is provided by 4-wheel disc brakes (13.8-inch vented discs front and rear) with Anti-lock Braking System (ABS) and Electronic Brake force Distribution (EBD). A new hydraulic brake booster (replacing the previous vacuum booster) helps to generate firm pedal feel with reduced travel, thereby increasing system responsiveness. Vehicle Dynamic Control (VDC) and 2-wheel or 4-wheel Active Brake Limited-Slip (ABLS) are standard on every QX56. Engine-speed-sensitive power steering is also standard.
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