| Model year | 2011 |
| Make | Infiniti |
| Model | QX56 |
| Style | 4dr SUV AWD (5.6L 8cyl 7A) |
| Base MSRP | $60,665 |
| Options on test vehicle | Deluxe Touring Package ($5,800 -- includes 22-inch alloy wheels with all-season performance tires, Hydraulic Body Motion Control System, climate-controlled front seats, heated second-row seats [outboard only], remote tip-up second row seats, semi-aniline leather seats, unique trim accents, Advanced Climate Control System, headlight washers); Theater Package ($2,450 -- includes dual 7-inch color monitors, two wireless headphones, wireless remote control, auxiliary audio/video input jacks and 120-volt power outlet); Technology Package ($1,500 -- includes intelligent cruise control, lane departure warning, lane departure prevention, distance control assist, intelligent brake assist, forward collision warning, blind spot warning, front pre-crash seatbelts, adaptive self-leveling headlights). |
| As-tested MSRP | $70,415 |
| Drive type | All-wheel drive |
| Engine type | V8 |
| Displacement (cc/cu-in) | 5,552cc (339 cu-in) |
| Block/head material | Aluminum/aluminum |
| Valvetrain | Double overhead camshaft |
| Compression ratio (x:1) | 10.8 |
| Redline (rpm) | 6,000 |
| Horsepower (hp @ rpm) | 400 @ 5,800 |
| Torque (lb-ft @ rpm) | 413 @ 4,000 |
| Fuel type | Premium unleaded (recommended) |
| Transmission type | Seven-speed automatic |
| Transmission and axle ratios (x:1) | I = 4.887, II = 3.170, III = 2.027, IV = 1.412, V = 1.000, VI = 0.864, VII = 0.775, Final = 2.9 |
| Suspension, front | Double wishbone |
| Suspension, rear | Double wishbone |
| Steering type | Speed-proportional power steering |
| Steering ratio (x:1) | 19.7 |
| Tire brand | Bridgestone |
| Tire model | Dueler H/T 684 II |
| Tire type | All-season front and rear |
| Tire size, front | P275/50R22 111H |
| Tire size, rear | P275/50R22 111H |
| Wheel size | 22-by-8 inches front and rear |
| Wheel material | Alloy |
| Brakes, front | Ventilated disc |
| Brakes, rear | Ventilated disc |
| EPA fuel economy (mpg) | 14 city/20 highway |
| Fuel tank capacity (U.S. gal.) | 26.0 |
| Curb weight, mfr. claim (lbs.) | 5,850 |
| Length (in.) | 208.3 |
| Width (in.) | 79.9 |
| Height (in.) | 75.6 |
| Wheelbase (in.) | 121.1 |
| Track, front (in.) | 67.6 |
| Track, rear (in.) | 68.2 |
| Turning circle (ft.) | 41.0 |
| Legroom, front (in.) | 39.6 |
| Legroom, rear (in.) | 41.0 |
| Legroom, 3rd row (in.) | 28.7 |
| Headroom, front (in.) | 39.9 |
| Headroom, rear (in.) | 40.0 |
| Headroom, 3rd row (in.) | 36.8 |
| Shoulder room, front (in.) | 63.8 |
| Shoulder room, rear (in.) | 63.5 |
| Shoulder room, 3rd row (in.) | 60.5 |
| Seating capacity | 8 |
| Cargo volume (cu-ft) | 19.3 |
| Max. cargo volume, seats folded (cu-ft) | 112.0 |
| Bumper-to-bumper | 4 years/60,000 miles |
| Powertrain | 6 years/70,000 miles |
| Corrosion | 7 years/Unlimited miles |
| Roadside assistance | 4 years/60,000 miles |
| Front airbags | Standard |
| Side airbags | Dual front and dual rear with head protection chambers |
| Head airbags | Front, rear and third row |
| Antilock brakes | 4-wheel ABS |
| Electronic brake enhancements | Braking assist, electronic brakeforce distribution |
| Traction control | Traction control |
| Stability control | Stability control |
| Rollover protection | Side curtain airbag, rollover sensor |
| Tire-pressure monitoring system | Tire-pressure monitoring |
| NHTSA crash test, driver | Not tested |
| NHTSA crash test, passenger | Not tested |
| NHTSA crash test, side front | Not tested |
| NHTSA crash test, side rear | Not tested |
| NHTSA rollover resistance | Not tested |
| IIHS offset | Not tested |
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