X-350 (XJ6 & XJ8) Saloons

From 2003 to 2009

Jaguar’s first production venture into aluminium construction, yet retaining many of the styling cues so well known to devotees of the XJ range over the years.

Jaguar needed to revitalise the flagship XJ model and took advantage of their new aluminium body technology to create an exciting new car coded X-350. The aluminium bodywork brought lightness and therefore greater efficiency (improved fuel consumption), along with new air suspension, also built of lightweight components. The exterior styling was traditional to still cater for Jaguar’s known customer base but the interior was all new and of substantially better quality.

Mechanically the car was initially launched with variants of existing engines from the 3.0 litre V6 (S-type engine), to the 4.2 litre V8, plus supercharged, and a new V8 configuration of 3.5 litres capacity, all mated to a 6-speed automatic transmission. The model range covered a standard XJ, a Sport model, SE (Special Equipment) and XJR.

The range was soon changed to include a Sport Premium model with extra standard trim, the SE moved over for a Sovereign and in 2006 Jaguar’s new 2.7 litre V6 twin turbo diesel engine (used in the S-type) joined the list of models. At the same time a special order Daimler Super V8 (supercharged) joined the range with traditional Daimler features.

Many minor trim changes and additions took place over the period of production and in 2008 all the cars were facelifted with a new more aggressive frontal treatment, revised rear bumpers and some minor other trim changes. The range overall was reduced and although not planned, a special order Daimler was again produced with the ultimate in interior trim.

The X-350 left production at the end of 2008 to make way for another, entirely new car to carry the flagship XJ name.

Model Summary

Model Type:

X-350 (XJ6 & XJ8) Saloons

Production Dates:

2003 - 2009

Engine Range:

2.7 Litre Diesel

3.0 Litre

3.5 Litre

4.2 Litre

4.2 Litre Supercharged

0 - 60 mph:

2.7 Litre Diesel - 7.8 seconds

3.0 Litre - 7.8 seconds

3.5 Litre - 7.3 seconds

4.2 Litre - 6.3 seconds

4.2 Litre Supercharged - 5 seconds

Top Speed:

2.7 Litre Diesel - 141 mph

3.0 Litre - 145 mph

3.5 Litre - 150 mph

4.2 Litre - 155 mph

4.2 Litre Supercharged - 155 mph

X-350 (XJ6 & XJ8) Saloons Technical Specifications

Technical Information

Engine Statistics

 2.7 Litre Diesel
Engine (cc)2722
Bore and Stroke (mm)81 x 88
Compression Ratio17.3:1
BHP204
@ RPM4000
Torque (lb ft)321
@ RPM1900
FuellingFuel-injection
 3.0 Litre
Engine (cc)2967
Bore and Stroke (mm)89 x 79.5
Compression Ratio10.5:1
BHP240
@ RPM6800
Torque (lb ft)221
@ RPM4100
FuellingFuel-injection
 3.5 Litre
Engine (cc)3555
Bore and Stroke (mm)86 x 76.5
Compression Ratio11:1
BHP262
@ RPM6250
Torque (lb ft)254
@ RPM4200
FuellingFuel-injection
 4.2 Litre
Engine (cc)4196
Bore and Stroke (mm)86 x90.3
Compression Ratio11:1
BHP300
@ RPM6000
Torque (lb ft)310
@ RPM4100
FuellingFuel-injection
 4.2 Litre Supercharged
Engine (cc)4196
Bore and Stroke (mm)86 x 90.3
Compression Ratio9:1
BHP400
@ RPM6100
Torque (lb ft)408
@ RPM3500
FuellingFuel-injection

Engine Performance

 2.7 Litre Diesel
Top Speed141 mph
0 - 60 mph7.8 seconds
Fuel Consumption35 mpg
 3.0 Litre
Top Speed145 mph
0 - 60 mph7.8 seconds
Fuel Consumption27 mpg
 3.5 Litre
Top Speed150 mph
0 - 60 mph7.3 seconds
Fuel Consumption26.5 mpg
 4.2 Litre
Top Speed155 mph
0 - 60 mph6.3 seconds
Fuel Consumption26 mpg
 4.2 Litre Supercharged
Top Speed155 mph
0 - 60 mph5 seconds
Fuel Consumption23 mpg

Model Specifications

 2.7 Litre Diesel
TransmissionZF 6-speed auto
Wheel Size (in)18 (variable)
Suspension (Front)Ind double wishbones, coil springs, air suspension standard
Suspension (Rear)Ind double wishbones, coil springs, air suspension standard
Brakes4-wheel disc, all ventilated
 3.0 Litre
TransmissionZF 6-speed auto
Wheel Size (in)17 or 18, alloy
Suspension (Front)Ind unequal-length double wishbones, anti-dive, coil springs, air suspension standard
Suspension (Rear)Ind double wishbones, coil springs, air suspension standard
Brakes4-wheel disc, all ventilated
 3.5 Litre
TransmissionZF 6-speed auto
Wheel Size (in)17 or 18, alloy
Suspension (Front)Ind unequal-length double wishbones, anti-dive, coil springs, air suspension standard
Suspension (Rear)Ind double wishbones, coil springs, air suspension standard
Brakes4-wheel disc, all ventilated
 4.2 Litre
TransmissionZF 6-speed auto
Wheel Size (in)18, alloy
Suspension (Front)Ind unequal-length double wishbones, anti-dive, coil springs, air suspension standard
Suspension (Rear)Ind double wishbones, coil springs, air suspension standard
Brakes4-wheel disc, all ventilated
 4.2 Litre Supercharged
TransmissionZF 6-speed auto
Wheel Size (in)18 or 19, alloy
Suspension (Front)Ind unequal-length double wishbones, anti-dive, coil springs, air suspension standard
Suspension (Rear)Ind double wishbones, coil springs, air suspension standard
Brakes4-wheel disc, all ventilated

Model Dimensions

 2.7 Litre Diesel
Length (in)199
Width (in)73
Height (in)55
Wheelbase (in)117
Front Track (in)61
Rear Track (in)60
Weight (Cwt)32.7
 3.0 Litre
Length (in)199
Width (in)73
Height (in)55
Wheelbase (in)117
Front Track (in)61
Rear Track (in)60
Weight (Cwt)30.4
 3.5 Litre
Length (in)199
Width (in)73
Height (in)55
Wheelbase (in)117
Front Track (in)61
Rear Track (in)60
Weight (Cwt)31.9
 4.2 Litre
Length (in)199
Width (in)73
Height (in)55
Wheelbase (in)117
Front Track (in)61
Rear Track (in)60
Weight (Cwt)31.9
 4.2 Litre Supercharged
Length (in)199
Width (in)73
Height (in)55
Wheelbase (in)117
Front Track (in)61
Rear Track (in)60
Weight (Cwt)32.8

Optional Extras

  • Air-suspension (selected models only)
  • De-chromed exterior trim pack (selected models only)
  • Power fold-back mirrors (where not fitted)
  • Headlamp power wash (where not fitted)
  • Heated front screen
  • Front distance park aid (where not fitted)
  • Electric sunroof
  • Variable heated seat cushions (where not fitted)
  • 16-way electrically adjustable front seats (selected models only)
  • Wood/leather steering wheel (where not fitted)
  • Heated wood/leather steering wheel
  • Four-zone climate control
  • Adaptive cruise control
  • Lambswool over-rugs
  • Ski-hatch
  • Rear sunblind (electric)
  • Side manually operated window blinds
  • Premium sound system
  • Telephone installations
  • Voice activation control
  • Satellite navigation system
  • Rear-mounted multi-media system with TV screens
  • Electrochromatic rear-view mirror with compass
  • Mudflaps
  • Tailored overmats
  • Child's safety seat
  • Child's booster cushion
  • First-aid kit for boot area
  • Space-saver spare wheel
  • Full-sized spare wheel
  • Fire extinguisher for boot area
  • Jaguar warning triangle
  • Headlamp converters
  • Headlamp safety covers
  • Mobile telephone kits
  • Snow chains
  • Luggage net for boot area
  • Witter tow bar kit
  • Tracker security system
  • Alternative woodwork veneers (according to model)
  • Long-wheelbase bodyshell to special order on non-production models
  • Tyre pressure monitoring system
  • Wheel options (dependent on model and standard equipment)
  • 17in Elegant
  • 18in Dynamic, Luxury, Prestige, Rapier, and Tucana
  • 19in Performance, Custom, Sabre, Polaris, and Carelia
  • 20in Sepang, Cremona, Takoba, and Callisto
  • R-Performance Specifics
  • 20in Sepang split-rim alloy wheels

X-350 (XJ6 & XJ8) Saloons Events

Shesley

This action-packed weekend always attracts a very wide variety of pre-1980's competition cars competing on the historic hill climb course, plus spectacular static vehicle displays, trade stands, vintage-inspired entertainment, musicians, live...

This action-packed weekend always attracts a very wide variety of pre-1980's competition cars competing on the historic hill climb course, plu...

Header Image

The Jaguar Enthusiast' Club visit Hull for our first Big Forum Weekend, based at the Mercure Hull Grange Park....

The Jaguar Enthusiast' Club visit Hull for our first Big Forum Weekend, based at the Mercure Hull Grange Park....

X-350 (XJ6 & XJ8) Saloons News

Cadwell Park Adam Powderham Pursues The Mid Field Pack

This 2.2 mile Parkland circuit is wonderful when dry but in the wet, with a grid full of Jaguars? A totally different story. Arriving on Friday for free practice, it was pouring & extremely slippery.

This 2.2 mile Parkland circuit is wonderful when dry but in the wet, with a grid full of Jaguars? A totally different story. Arriving on Friday for free practice, it was pouring & extremely slippery.

Xj6 Xj8 Saloon
Daimler Super V8

Model Contacts

Mike Kennedy

X350 Forum Co-ordinator

Tel: +44 07974 131127@: x350.jec@gmail.com

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