The Jaguar XJ (X351) is fourth generation of the Jaguar XJ executive saloon from Jaguar.

 

Supersport
3.0 L diesel, 5.0 L supercharged 510 PS
Mataiva 20-inch alloy

Engines

Engines are enlarged and upgraded versions of the previous V8 petrol and V6 diesel

Model Type (displacement, bore × stroke) power, torque at rpm acceleration 0–100 km/h (0-62 mph) (s) top speed[22]
3.0-litre V6 Diesel AJ-V6D GEN III 2,993 cc (2.993 L; 182.6 cu in) V6 twin turbo, 84 mm × 90 mm (3.3 in × 3.5 in) 275 PS (202 kW; 271 hp) at 4,000, 600 N⋅m (443 lbf⋅ft) at 2,000 6.4 250 km/h (155 mph)
5.0-litre V8 Petrol AJ-V8 GEN III 5,000 cc (5.0 L; 310 cu in) V8, 92.5 mm × 93 mm (3.64 in × 3.66 in) 385 PS (283 kW; 380 hp) at 6,500, 515 N⋅m (380 lbf⋅ft) at 3,500 5.7 250 km/h (155 mph)
5.0-litre V8 Petrol Supercharged 470 PS AJ-V8 GEN III 5,000 cc (5.0 L; 310 cu in) V8 supercharged, 92.5 mm × 93 mm (3.64 in × 3.66 in) 470 PS (346 kW; 464 hp) at 6,000–6,500, 575 N⋅m (424 lbf⋅ft) at 2,500–5,500 5.2 250 km/h (155 mph)
5.0-litre V8 Petrol Supercharged 510 PS AJ-V8 GEN III 5,000 cc (5.0 L; 310 cu in) V8 supercharged, 92.5 mm × 93 mm (3.64 in × 3.66 in) 510 PS (375 kW; 503 hp) at 6,000–6,500, 625 N⋅m (461 lbf⋅ft) at 2,500–5,500 4.9 250 km/h (155 mph)

Transmission and speed

All 2010 models of the Jaguar XJ include standard six-speed automatic transmission with Jaguar Sequential Shift carried over from the previous car, the main change being steering wheel paddles rather than the “J” gate. The car has an electronically limited top speed of 155 mph. An eight speed automatic transmission was introduced for 2013.

Chassis

The XJ features a lightweight aluminium floorpan & body (with 50% recycled material content) based on the X350 chassis and retaining a proportion of the earlier floor pan. The biggest change is reversion to steel coil springs for the front suspension, retaining air suspension for the rear only. Continuously variable damping electronically controlled as before but with driver selectable modes.[26] The aluminium alloy uni-body makes the XJL among the lightest of the full-size executive saloons despite its exterior proportions, weighing in at 4,131 lb (1,874 kg), which is 245 lb (111 kg) lighter than the mid-size/executive BMW 550i.[21]

Equipment

Driver information and entertainment is provided by a Bowers & Wilkins 1,200-watt, 20-speaker Dolby 7.1 surround-sound system[11] and a bi-directional touch screen display – on which the driver can only see the vehicle functions (and satellite navigation data), but a front passenger can simultaneously view a DVD movie or a television transmission.[26] Standard equipment levels on the United States-spec XJL with the base engine includes a panoramic dual-pane moonroof, lane-departure warning, navigation, quad-zone climate control and power sunshades, which is considered to be generous at this price point compared to other flagship executive saloons.[21]

Fuel economy and emissions

The diesel engined version will have a fuel economy of better than 40 miles per imperial gallon (7.1 L/100 km; 33 mpg‑US) and a CO
2 emission rating of 184 g/km.[4]

Production

On 11 May 2010, the British Prime Minister, David Cameron, took delivery of the dark grey (car No. 10) of Jaguar XJ Sentinel as his official transport.[27] In 2011, David Cameron took the delivery of another XJ Sentinel featuring “bomb proof” doors, bullet proof glass and armoured plating beneath the floor of the car, respectively replacing the previous XJ Sentinel.[28]

2011 update

New options include:[29]

  • New Rear Seat Comfort package, which incorporates electric recline, lumbar adjustment and massage functions to reinforce the ultimate executive limousine experience.
  • Executive Pack option is added to XJL Portfolio model, which includes provision of fold-down laptop trays and an electric rear sunblind, upgraded carpeting, combination wood and leather steering wheel, gloss wood veneer choices and chrome mirror housings.
  • Sport and Speed Pack option, which includes a new front splitter and rear spoiler, suede headliner, sport seats with contrasting stitching, bright metal pedals, either piano black or carbon-fiber interior trim, gloss black exterior trim, red brake calipers, and Venom 20-inch wheel design. The speed governor is relaxed from 250 km/h (155 mph) to 280 km/h (174 mph).
  • Illumination Package (standard on Supersport model) is available as option of other XJ models.
  • 3.0-litre petrol V6 engine for selected markets, launched in China

XJ 5.0 V8 Portfolio Prestige

It is a version sold in Hong Kong market.[30] Based on XJ Portfolio LWB with 5.0-litre petrol engine, it includes XJ rear seat comfort pack and gloss oak interior veneer.

XJ Ultimate

Available only in long wheelbase body, the car was developed by the Jaguar Land Rover’s specialist Engineered To Order (ETO) division. The vehicle was unveiled at the 2012 Beijing Auto Show.

US model includes V8 supercharged 510 PS, eight-speed automatic transmission, and went on sale in late 2012 as 2013 model year vehicle.[31]

In India, the XJ Ultimate is available with a 5.0 litre V8 petrol engine that costs ₹18.8 million (US$260,000) or with a 3.0 litre V6 turbocharged diesel engine that costs ₹17.8 million (US$250,000).[32]

Models

Models Luxury Premium Luxury Portfolio Portfolio Prestige Supersport Ultimate
Engines 3.0 L diesel 3.0 L diesel, 5.0 L 3.0 L diesel, 5.0 L, 5.0 L Supercharged 470 PS 5.0 L 3.0 L diesel, 5.0 L Supercharged 510 PS 3.0 L diesel, 3.0 L Supercharged 340 PS, 5.0 L Supercharged 510 PS
Wheels (standard) Meru 18-inch alloy Aleutian 19-inch alloy Kasuga 20-inch alloy Kasuga 20-inch alloy Mataiva 20-inch alloy Maroa 20-inch forged

Portfolio Prestige, Ultimate available in long wheel base only.

Engines

Model Type (displacement, bore x stroke) power, torqueatrpm acceleration 0–100 km/h (0-62 mph) (s) top speed[22][33]
3.0-litre V6 Diesel AJ-V6D GEN III 2,993 cc (183 cu in) V6 twin turbo, 84 mm × 90 mm (3.3 in × 3.5 in) 275 PS (202 kW; 271 hp) at 4,000, 600 N⋅m (443 lbf⋅ft) at 2,000 6.4 250 km/h (155 mph)
5.0-litre V8 Petrol AJ-V8 GEN III 5,000 cc (305 cu in) V8, 92.5 mm × 93 mm (3.64 in × 3.66 in) 385 PS (283 kW; 380 hp) at 6,500, 515 N⋅m (380 lbf⋅ft) at 3,500 5.7 250 km/h (155 mph)
5.0-litre V8 Petrol Supercharged 470PS AJ-V8 GEN III 5,000 cc (305 cu in) V8 supercharged, 92.5 mm × 93 mm (3.64 in × 3.66 in) 470 PS (346 kW; 464 hp) at 6,000-6,500, 575 N⋅m (424 lbf⋅ft) at 2,500-5,500 5.2 250 km/h (155 mph) (280 km/h (174 mph) with Speed Pack)
5.0-litre V8 Petrol Supercharged 510PS AJ-V8 GEN III 5,000 cc (305 cu in) V8 supercharged, 92.5 mm × 93 mm (3.64 in × 3.66 in) 510 PS (375 kW; 503 hp) at 6,000-6,500, 625 N⋅m (461 lbf⋅ft) at 2,500-5,500 4.9 250 km/h (155 mph) (280 km/h (174 mph) with Speed Pack)

2012 update

Changes include:[34][35]

  • Introduction of 3.0-litre V6 Supercharged and 2.0-litre i4 Turbocharged petrol engines
  • Eight-speed automatic transmissions for all models
  • Jaguar’s Intelligent Stop/Start system extended to all V6 and V8 petrol and all diesel engines
  • The supercharged V8 petrol engine has fuel economy gains of up to 11% with emissions reductions of more than 8%, while the naturally-aspirated V8 sees economy improvements of up to 8% with emissions down by more than 6%.
  • Optional sound systems developed by British ultra-premium specialist Meridian. Available in two power outputs – 380 W and 825 W – both featuring multiple channel amplifiers and Digital Signal Processing software powering an array of loudspeakers.
  • Infotainment system updates enhance the audio and navigation interfaces and usability.
  • Suspension enhancements to the XJ further optimise passenger comfort.

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