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The Infiniti QX56 is a full-size luxury SUV built by Nissan's Infiniti division. The naming convention originally adhered to the current trend of using a numeric designation derived from the engine's displacement, thus "QX56" since the car has a 5.6 liter engine. From the 2014 model year, the car was renamed the QX80, as part of Infiniti's model name rebranding. The new name carries no meaning beyond suggesting that the vehicle is larger than smaller models such as the QX60. ==First generation series JA60 (2004–2010)== The Infiniti QX56 (JA60) was a full-size sport utility vehicle (SUV) sold under the Nissan-owned Infiniti luxury brand. It was based on the Nissan Armada full-size SUV, and shared the F-Alpha platform with the Nissan Titan pickup truck. The QX56 was unique to the United States, Canada, Russia, Oman, Bahrain, Qatar, UAE, Kuwait and Saudi Arabia only. It was also the first Infiniti built in the United States. Development on the Infiniti JA60 began in 2000 alongside the Nissan WA60. A final design by Masato Takahashi was reached in early 2001, with an August 2001 design freeze for early 2004 start of production. The rear door handles were installed on the "C" pillar as a Nissan design tradition started with the 1986 Nissan Pathfinder. When the four-door Nissan Pathfinder was introduced, Nissan chose to conceal the door handles as a part of the "C" pillar trim to visually make it appear like a two-door truck with a camper shell, with conventional door handles on the front doors. The JA60 was propelled by a 5.6 L ''VK56DE'' V8 engine (320 hp (HREF="http://www.kotoba.ne.jp/word/11/Watt#Kilowatt" TITLE="Watt#Kilowatt">kW ) @ 4,900 rpm and torque @ 3,600 rpm) and a 5-speed automatic transmission with an overdrive. As is common with aluminum blocks, each cylinder in the engine was lined with cast iron. The valvetrain was a DOHC design with four valves per cylinder. Infiniti designed the QX56's throttle responsiveness to correspond to specific drivetrain modes: when the driver selects all-wheel drive, the throttle becomes less sensitive, presumably to allow easier regulation of acceleration when off-road. The Infiniti QX56 had around 9,000 lb (4082 kg) of towing capacity. Mileage at peak performance drain is . It comes in one trim level, with only key options such as: DVD entertainment system, 4WD/2WD, and a bench instead of captain chairs as the second row. Other features which came standard were a ten-speaker Bose system, DVD-based navigation system, leather trim for all seats, dual-climate control, 18-inch chrome alloy wheels, and an adaptive cruise control system. A Precrash system was a unique feature in the market as well. Since the demise of the Q45 (which was priced above the QX56) after 2006, the QX56 was the most expensive Infiniti sold in North America, and was Infiniti's only full-size vehicle. In early 2007 for the 2008 model year, the Infiniti QX56 received a minor facelift which included a revised grille, more standard equipment and standard 20-inch chrome wheels. Introduced at the 2007 NAIAS in January 2007, the facelifted model went on sale in April 2007. In 2008 the QX56 received updates to the braking system. For 2009 the QX56 received auto locking doors and deep garnet metallic was added as a new color. For 2010 the MSRP was increased by $1000, 4WD versions now cost $60,000 and some colors were deleted. Although the Armada continued to be produced in the United States for the 2011 model year, after the 2010 model year the QX56 and Armada would no longer share the same platform. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Infiniti QX56」の詳細全文を読む スポンサード リンク
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