Performance

Performance  - 2011 Infiniti QX56 Review - Reviews - Infiniti QX

For a massive SUV, the QX56 is a surprising performer. The 5.6-liter V-8 makes 400 horsepower and 413 pounds-feet of torque. Combined with a seven-speed automatic transmission, the QX accelerates as briskly as a sport sedan of a decade ago. Our friends at "MotorWeek" tested the QX's zero to 60 mph acceleration at 6.3 seconds and its quarter-mile at 14.9 seconds. Those are entirely respectable numbers for a 5,800-pound SUV.

The QX56's EPA-estimated mileage is expectedly low, at 14/20 mpg city/highway with rear- or all-wheel drive, but that is an improvement over the 2010 QX's 12/18 mpg with rear-wheel drive and 12/17 mpg with all-wheel drive. I averaged around 15 mpg during testing that accumulated 1,000-plus miles traveling between Illinois and Michigan. These weren't only highway miles, as we also used the QX as a chase car to haul video equipment and crew.

Despite being built on truck architecture, the QX's ride isn't trucklike at all. It rides smoothly and confidently, even on the massive 22-inch wheels that are part of an optional Deluxe Package. I would even call the QX fun to drive, especially considering the redesigned Lexus GX 460 rolls into corners like a boat, nosedives during braking and squats on acceleration.

One option that may have helped the QX feel so composed was its Hydraulic Body Motion Control, also part of the Deluxe Package. The system's shock absorbers transfer fluid from one side's shock to the other during cornering to combat body roll.

    See also:

    Readiness for Inspection/Maintenance (I/M) test
    A vehicle equipped with Four-Wheel Drive (4WD) should never be tested using a two wheel dynamometer (such as the dynamometers used by some states for emissions testing), or similar equipment. ...

    4WD shift switch
    ► Shift the 4WD shift switch to either the AUTO, 4H or 4L position, depending on driving conditions. ► With the switch set to the AUTO position, distribution of torque to the front ...

    Engine compartment
    Engine compartment VQ25HR/VQ37VHR engine 1. Fuse/fusible link holder2. Battery3. Engine oil filler cap4. Brake fluid reservoir5. Clutch fluid reservoir (Manual Transmission models)6. Window washer ...