V6 Diesel Engine
The 'near 50mpg' 2.7 V6 Diesel engine is so efficient, it actually requires a supplementary heater in order to supply warm enough air to the cabin.
The fuel pressure in the 2.7 V6 Diesel engine is held at a constant 1650 bar, that's 750 times more than a fully inflated tyre!

Automatic Heated Screens
The front & rear heated screens (and heated door mirrors) come on automatically when the ambient exterior temp reaches minus one degrees C (as long as the power management system is happy about the amount of charge in the battery).

Satellite Navigation
When the fuel level is low, the satellite navigation automatically shows petrol stations.

ZF Transmission
The electronic brain of the ZF transmission 'learns' to respond to your driving style. In Sport mode, throttle and cornering behaviour are monitored. When an enthusiastic driving style or a demanding road is detected, 6th gear is inhibited and lower gears are made more accessible, to prevent 'hunting' between gears. In cruising mode, 6th gear is reinstated to maximise refinement and economy. After heavy braking, the system downshifts to allow optimum acceleration if required.

R Perfomance
On R-Performance models, the 6-speed automatic transmission is programmed to not upshift mid-bend when a high lateral-g loading is detected.

Adaptive Cruise Control (ACC)
Adaptive Cruise Control features radar technology developed for the aviation industry.

JaguarVoice
With JaguarVoice, it is possible to adjust the climate control settings, set a navigation route home, control TV, Radio, CD, MD, Tape and make a hands-free telephone call, all without even moving one's hands from the steering wheel or taking one's eyes off the road!

Jaguar Key Fob
If you hold down both the lock and unlock buttons on a Jaguar key fob simultaneously you can both immobilise or activate the two-stage unlocking. Just hold them both down, wait for the indicators to activate after about 5 seconds and the action is in place. To change back, just do the same action again.

XJ Suspension
Instead of traditional steel coil springs, the XJ uses advanced, self-levelling air spring/damper units to deliver the ideal balance of ride and handling, whatever the road conditions. Height sensors feed data to an electronic control module that ensures the XJ is always level, regardless of passenger or luggage load. When parked, the system awakens every 24 hours to level the vehicle.

XKR Veneers
The high quality Burr Walnut veneers for the XKR come, not from the trunk, but from the growths at the base of 75-year old American walnut trees. These 'burls' with their rich distinctive patterning are dug out, roughly planed and shipped to England for cutting into fine veneers. Jaguar craftsmen 'mirror match' veneers from the same burl for facias and door inserts. This means flipping the veneer of consecutive sheets to achieve a perfect mirror-image pattern. The veneer and laminates are then built up with alternate grains over a metal substrate and heat bonded. After lacquering, they go through progressive stages of polishing until each individual set is packed and matched with the individually specified Jaguar it is being made for. A similar process is applied for Elm and Birds Eye Maple.

Disc Brakes
Jaguar was the first Manufacturer to use Disc Brakes and DOHC (Double Overhead Cam Shaft) engines in their production cars.