2014 Jaguar XJR LWB Full Test Specs | Edmunds.com
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2014 Jaguar XJ - Road Test Specs

2014 Jaguar XJ Sedan

(5.0L V8 Supercharger 8-speed Automatic)

Vehicle

Year Make Model2014 Jaguar XJR LWB 4dr Sedan (5.0L 8cyl S/C 8A)
Vehicle TypeRWD 4dr 5-passenger sedan
Base MSRP$119,895
Options on test vehicleLunar Grey Metallic, Illumination Package ($1,700 -- includes stainless-steel illuminating sill tread plates with Jaguar script, illuminated front and rear air vents, illuminated trunk latch finishing plate); Carbon-Fiber Interior Trim ($1,575); Electric Side Window Sunshades ($700).
As-tested MSRP$123,870
Assembly locationCastle Bromwich, England
North American parts content (%)7

Drivetrain

ConfigurationLongitudinal, front-engine, rear-wheel drive
Engine typeSupercharged, direct-injected V8, gasoline
Displacement (cc/cu-in)5,000/305
Block/head materialAluminum/aluminum
ValvetrainDouble overhead camshaft, four valves per cylinder with variable intake and exhaust valve timing
Compression ratio (x:1)9.5
Redline, indicated (rpm)6,800
Fuel cutoff/rev limiter (rpm)6,600
Horsepower (hp @ rpm)550 @ 6,000
Torque (lb-ft @ rpm)502 @ 2,500
Fuel typePremium unleaded (required)
Transmission typeEight-speed automatic with console shifter knob and steering-mounted paddles with sport/competition modes
Transmission ratios (x:1)I = 4.714; II = 3.143; III = 2.106; IV = 1.667; V = 1.285; VI = 1.000; VII = 0.839; VIII = 0.667; R = 3.317
Final-drive ratio (x:1)2.56
Differential(s)Electronic active rear differential

Chassis

Suspension, frontIndependent double wishbones, coil springs, driver-adjustable two-mode variable dampers, stabilizer bar
Suspension, rearIndependent multilink, coil springs, driver-adjustable two-mode variable dampers, stabilizer bar
Steering typeHydraulic-assist, speed-proportional rack-and-pinion power steering
Tire make and modelPirelli P Zero
Tire typeAsymmetrical summer performance
Tire size, front265/35ZR20 99Y
Tire size, rear295/30ZR20 101Y
Wheel size, front20-by-9 inches
Wheel size, rear20-by-10.5 inches
Wheel materialForged aluminum
Brakes, front15-inch ventilated discs with two-piston sliding calipers
Brakes, rear14.8-inch ventilated discs with single-piston sliding calipers

Track Test Results

Acceleration, 0-30 mph (sec.)1.8
0-45 mph (sec.)2.8
0-60 mph (sec.)4.1
0-75 mph (sec.)5.7
1/4-mile (sec. @ mph)12.1 @ 117.6
0-60 with 1 foot of rollout (sec.)3.8
0-30 mph, trac ON (sec.)1.9
0-45 mph, trac ON (sec.)3.0
0-60 mph, trac ON (sec.)4.2
0-75 mph, trac ON (sec.)5.9
1/4-mile, trac ON (sec. @ mph)12.2 @ 117.1
0-60, trac ON with 1 foot of rollout (sec.)3.9
Braking, 30-0 mph (ft.)28
60-0 mph (ft.)105
Slalom, 6 x 100 ft. (mph)66.6
Slalom, 6 x 100 ft. (mph) ESC ON65.4
Skid pad, 200-ft. diameter (lateral g)0.86
Skid pad, 200-ft. diameter (lateral g) ESC ON0.86
Sound level @ idle (dB)39.9
@ Full throttle (dB)74.3
@ 70 mph cruise (dB)60.6
Engine speed @ 70 mph (rpm)1,500

Test Driver Ratings & Comments

Acceleration commentsTraction control does its best to maximize the power to the rear wheels when turned on, and a 4.2-second 0-60-mph run is as easy as just mashing the throttle (our best was only 4.1). This, despite pretty slow upshifts. With TC turned off there's some techinique required, as mashing the throttle produces a big burnout but a slower time. Best method was a minor bit of throttle/brake overlap to bring the revs up slightly at launch, followed initially by a smidge less than full throttle as you release the brake. It gets some wheelspin toward the top of 1st gear, and in Drive/Sport mode it then will also upshift early. Best run came using the manual shifting mode with the steering wheel paddles to hold 1st gear a bit longer. In manual mode it will hold gears to the 6,600-rpm rev limiter, and it blips the throttle on downshifts.
Braking commentsThis big Jag stops in impressively short distances, but wow there's a lot of ABS commotion. You can definitely feel those tires scratching for grip. Well-controlled stops with zero movement and minimal nosedive. The pedal stayed nicely firm, from the first stop at 106 feet, to the sixth and shortest stop at 105 feet to the seventh and final stop at 107 feet.
Handling commentsSlalom: Even though the steering has a light effort, it's surprisingly quick. The stiffer suspension setting keeps the car fairly level, and the tires grip nicely. With this long-wheelbase model, this is a big car to get around the cones, and it took a few runs to comprehend just how far the rear tires trail behind you. Some cones were killed in the process. The stability control system does a good job of staying out of it until things get massively out of shape, then it mashes the brakes hard. The Trac/DSC stability control mode allowed a fair bit of oversteer at slalom exit. Skid pad: The XJR's stiff and abrupt throttle was a real pain here, making it difficult to play with the throttle to adjust the car's attitude. Annoying. At these lower speeds the Jag's light steering was prevalent but hardly an issue. We ran the suspension in Dynamic mode for all runs, and grip was identical whether with ESC on, in Trac/DSC mode or with everything off.

Testing Conditions

Test date9/10/2013
Elevation (ft.)1,121
Temperature (F)78.9
Relative humidity (%)46.1
Barometric pressure (in. Hg)28.7
Wind (mph, direction)3.2, head/cross wind
Odometer (mi.)6,261
Fuel used for test91-octane gasoline
As-tested tire pressures, f/r (psi)34/34

Fuel Consumption

EPA fuel economy (mpg)18 combined/15 city/23 highway
Edmunds observed (mpg)16.7 average/22.1 best/13 worst
Fuel tank capacity (U.S. gal.)21.7
Driving range (mi.)499.1

Audio and Advanced Technology

Stereo descriptionAM/FM/CD/MP3 Meridian audio system with 825 watts and 17 speakers
iPod/digital media compatibilityStandard USB port and aux-in jack
Satellite radioStandard Sirius/XM with three-month trial subscription
Hard-drive music storage capacity (Gb)Standard with 30GB storage
Rear seat video and entertainmentOptional
Bluetooth phone connectivityStandard
Navigation systemStandard hard-drive-based with 8.0-inch touchscreen
Telematics (OnStar, etc.)Not available
Smart entry/StartStandard doors and ignition
Parking aidsStandard front and rear sonar, rearview camera. Self-parking not available.
Blind-spot detectionStandard
Adaptive cruise controlOptional
Lane-departure monitoringNot available
Collision warning/avoidanceOptional
Night VisionNot available

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)4,147
Curb weight, as tested (lbs.)4,351
Weight distribution, as tested, f/r (%)52/48
Length (in.)206.8
Width (in.)74.8
Height (in.)57.4
Wheelbase (in.)124.3
Track, front (in.)64.0
Track, rear (in.)63.1
Turning circle (ft.)40.4
Legroom, front (in.)41.5
Legroom, rear (in.)43.7
Headroom, front (in.)39.5
Headroom, rear (in.)37.2
Shoulder room, front (in.)57.6
Shoulder room, rear (in.)56.6
Seating capacity5
Step-in height, measured (in.)14.9
Trunk volume (cu-ft)15.2
Cargo loading height, measured (in.)28.1
GVWR (lbs.)5,357

Warranty

Bumper-to-bumper4 years/50,000 miles
Powertrain4 years/50,000 miles
Corrosion4 years/50,000 miles
Roadside assistance4 years/50,000 miles
Free scheduled maintenance1 year/16,000 miles
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