INTRODUCTION
"Built in the tradition of great grand tourers, with
state-of-the-art engineering, aerospace-inspired construction and
outstanding driving dynamics, the new XK is the latest in a long
line of legendary performance
Jaguars."
MIKE O'DRISCOLL, MANAGING
DIRECTOR, JAGUAR CARS
The Jaguar sports car experience moves on to a new level with
the introduction of a new generation of the XK coupe and
convertible.
With all-new engines, even more dramatic looks, a new interior,
an advanced lightweight aluminium body structure and a wider range
of models, the new XK builds on 60 years of legendary performance
to deliver the best of everything Jaguar.
Designated 2010 model year, with deliveries commencing in Q1
2010, the new XK range not only stands out from the crowd, it
stands apart. The combined efforts of Jaguar's designers and
engineers have produced a car that utilises advanced technologies
at a higher level than ever before.
The benefits of the XK's lightweight but incredibly stiff and
strong chassis are already acknowledged. Not only does this
architecture bring dynamic benefits thanks to its torsional
rigidity, it also offers excellent safety and crash repair features
- and provides the ideal base to optimise performance across the
board, including fuel economy and CO2 emissions.
The all-new AJ-V8 Gen III engines are the most efficient Jaguar
has ever produced. They deliver significantly more power and torque
than the previous generation of engines: 375kW and 625Nm in the new
supercharged XKR and 283kW and 515Nm in the XK models.
With the introduction of these all-new 5.0-litre
direct-injection V8 engines comes a new level of performance for
the XK, with improved acceleration from standstill and stunning
in-gear acceleration times. All models are electronically limited
to a maximum speed of 250kph, but the 0-100kph sprint for naturally
aspirated coupe models falls from 6.2 to 5.5 seconds, while for the
supercharged XKR coupe, 0-100kph is reduced from 5.2 to 4.8
seconds.
And yet thanks to a combination of excellent powertrain
efficiency and the XK's advanced lightweight body architecture, all
XKs offer strong fuel economy and impressive CO2 emissions ratings.
Fuel economy is comparable to the previous generation of XK -
despite the significant increases in performance - and CO2
emissions from each engine are better than the out-going versions,
with the naturally aspirated version improving on that of the
4.2-litre V8 by two percent, while the supercharged engine produces
one percent less CO2 than its predecessor. Indeed, the new
generation XK is among the very best in both fuel economy and
emissions for any V8-engined sports car.
"With an all-new, supercharged AJ-V8
engine and dramatic new looks, the new XKR has all the
performance,
power and panache that you expect in the ultimate sporting
Jaguar."
MIKE O'DRISCOLL, MANAGING DIRECTOR, JAGUAR
CARS
Allowing the engines to optimise their power is one of the most
sophisticated transmissions available. Jaguar's acclaimed
electronically controlled, six-speed ZF 6HP28 transmission offers
an unparalleled combination of driver control matched to virtually
undetectable gearshifts. With control either from steering
wheel-mounted paddles or full automatic mode via the JaguarDrive
SelectorTM, which is new for the 10 Model Year XK, the transmission
is now paired with an advanced electronic differential on the XKR
model to ensure it accelerates even faster, handles more precisely
and sets new standards of dynamic control and excellence.
In addition to the many changes under the skin, the new XKs are
visually different to the previous generation. Each still looks
just like a Jaguar should look - seductive, powerful and elegant -
but all models, coupe and convertible, introduce revised exterior
styling that underlines Jaguar's contemporary thinking on
design.
Inside, quality levels are raised even further with new interior
trim and finishes that demonstrate Jaguar's renowned craftsmanship,
plus even more comprehensive specification.
The driver is the centre of attention, with exciting new ideas,
including the acclaimed JaguarDrive Selector™, Adaptive
Dynamics with Active Differential Control and comfort features such
as heated and cooled seats - taking the driving experience of the
new XK range to even higher levels of luxury alongside the improved
performance.
"The new XK delivers more power, more performance
and more technology - without compromise. It moves the Jaguar
sports car experience on to a whole new level."
Mick, Mohan, Director, Jaguar Programmes
The new XK range at a glance
- New generation of Jaguar XK sports coupe and convertible
- Exterior styling revised on all models
- Advanced aluminium body architecture is strong and lightweight
and the key to optimising performance, dynamic agility and
competitive CO2 emissions and fuel economy
- All-new AJ-V8 Gen III direct-injection engines are the most
powerful and efficient engines Jaguar has ever produced:
- 5.0-litre supercharged V8 delivers 375kW, 625Nm of torque and
propels XKR coupe to 100kph in just 4.8 seconds.
- 5.0-litre naturally aspirated V8 engine delivers 283kW, 515Nm
of torque and propels XK coupe to 100kph in just 5.5 seconds.
- Improved CO2 emissions performance (Euro Stage V two years
ahead of legislative requirement) and comparable fuel economy to
the smaller capacity and less powerful engines they replace
- New generation of XK is true to the heritage of Jaguar's
legendary performance
- State-of-the-art six-speed automatic transmission has seamless
gearshifts, plus for the first time on the XKR model an electronic
differential to optimise traction and dynamic performance
- New design features, including exciting customer-friendly
technologies such as the JaguarDrive SelectorTM first seen on the
XF, further enhance performance, driving dynamics and the XK
range's unique luxury sporting character.
- Styling revisions include a new front bumper, new side mirrors
with integrated LED side repeater, rear valance, rear LED lights
and colour-coded side power vents for both coupé and
convertible versions
- First cars arrive in Australia in Q1 2010.
- Recommended Retail Prices are :
XK 5.0V8 Coupe |
$224,200 |
XK 5.0V8 Convertible |
$247,500 |
XKR 5.0V8 S/C Coupe |
$255,000 |
XKR 5.0V8 S/C Convertible |
$278,300 |
THE NEW XK RANGE IN DETAIL
The new XK is a sophisticated grand tourer with the heart of a
true sports car, combining effortless high-performance and
state-of-the-art V8 powertrains with a new layer of advanced
technologies, intuitive control, and Jaguar's superbly crafted,
new-fashioned luxury interiors.
The range will continue to include both naturally aspirated XK
and supercharged XKR, available in 2+2 coupé or convertible
body styles.
All-new AJ-V8 Gen III 5.0-litre direct-injection engines bring
significant improvements in power and torque and they do so with no
compromise in terms of fuel economy and emissions.
In both respects, every car in the new XK range, in spite of
such large performance and flexibility gains, is comparable to
their predecessors.
The impressive fuel economy is directly attributable to the
combination of the XK range's lowest-in-class weight and the
all-new AJ-V8 Gen III engines. As well as the intrinsic advantages
of the engines' exceptionally light weight and compact dimensions,
these technically advanced all-aluminium four-cam power units offer
a number of features that deliver power with very high efficiency,
including spray-guided direct injection (SGDI), which improves
performance and economy, and dual independent variable cam timing
(DIVCT), which benefits performance and economy and also reduces
emissions.
The model range for the new XK comprises just two clear choices
- XK and XKR. Each has its own specific choices of trim, colour and
fine detail, but every one has the same underlying sporting
character and clear emphasis on efficient performance, luxury and
craftsmanship.
Beyond that, the XK vehicle personalisation programme also
offers an extensive range of accessories that allow the customer to
add further bespoke touches - inside and out.
Stunning performance increases
In naturally aspirated form, the new AJ-V8 Gen III 5.0-litre
engine delivers 283kW of power and 515Nm of torque - respectively
26 and 23 percent more than its 4.2-litre predecessor.
The XKR's supercharged 5.0-litre AJ-V8 Gen III R delivers a
mighty 375kW and 625Nm of torque - improvements of 23 and 12
percent respectively over the supercharged 4.2-litre
engine.
On the road, while maximum speed remains under electronic
control at 250kph, these power and torque gains allied to the
lightweight aluminium body architecture of the XK dramatically
reduce acceleration times. For the naturally aspirated XK Coupe,
0-100kph is reduced from 6.2 to 5.5 seconds; for the supercharged
XKR Coupe, 0-100kph is reduced from
5.2 to 4.8 seconds.
The supercharged XKR is also impressively efficient, with an
average consumption of 12.3 l/100km and a CO2 rating of 292g/km -
an improvement over the previous XKR.
The Looks - exterior styling
Visible changes on the new XK and XKR reflect the significant
changes under the skin.
Carefully revised exteriors take the seductive, powerful,
elegant lines that define Jaguar's new design language and
interpret them for a dramatically beautiful 2+2 sports car whose
shape is even more taut, powerful and athletic. Evoking the essence
of performance long before it moves, the new XK family shape is
unmistakably 'new-school' sporting Jaguar: wholly contemporary,
finely sculpted, efficiently packaged and precisely detailed.
Design Director Ian Callum outlines the new design features on
the XK range:
"The current XK was the first car to signify a new
generation of Jaguars - cars that have honed our image every bit as
successfully as the original XK120 or E-type. Now the new XK range
reinforces that message. The cars' visual agility and beautiful
lines have been enhanced with a distinctive new front end, rear
lights and revised body styling that gives every model even more
presence."
The exterior changes for both the naturally aspirated XK and the
supercharged XKR are highlighted by a distinctive and purposeful
new front bumper design, new LED rear lights and a new lower rear
body valance. New LED rear light clusters incorporating fog lamps
plus twin reversing lamps (rather than the previous single units)
give each car in the new XK range a unique 'night time signature',
while LED technology is also included in the integrated side
repeater and approach lamps in the new exterior mirrors. Each car
in the new XK range also features new engine covers and revised,
body-coloured side power vents.
Beyond the shared changes, subtle differences in detail
distinguish the new XK from the new XKR. The naturally aspirated XK
and the supercharged XKR display purposeful front bumper features
with stylish, chrome-detailed inserts and further chrome detailing
to the upper mesh grille. The XKR is set apart by also featuring
chrome on its lower mesh grille - which is finished in black on the
XK. All models now feature chrome detailing on window surrounds and
rear signature blade, and in addition the XKR comes with a new
lower rear valance that is finished in body colour and a revised
tailpipe design further emphasising its sporting performance.
The Looks - interior styling
Contemporary, sporting luxury, exceptional quality of
craftsmanship, and Jaguar's renowned attention to detail are the
keynotes of the new XK range's enhanced interiors. The cabin is
clean, elegant and spacious, and remains entirely in harmony with
the sporty character of the revised exterior.
The luxury character of the new XK range, however, is
guaranteed, regardless of the customer's choice of body style -
hard-topped coupé or fabric-roofed convertible. Both benefit
from the inherent strength of Jaguar's lightweight aluminium
architecture, which means that as well as being the lightest body
structure in its class, the XK and XKR's shells also have the
highest torsional strength. And that exceptional rigidity, with or
without a fixed roof, means creak and rattle-free refinement on
virtually any surface, however unforgiving.
Beyond that, the convertible's triple-lined fabric roof gives a
level of fit and stability even at very high speeds that minimises
wind noise and other road noise and includes a luxurious interior
finish almost indistinguishable from a fixed roof. In addition, the
XK and XKR feature luxurious Jaguar Suedecloth headlining as
standard.
It can, however, be powered up or down at the touch of a button
in less than 18 seconds. And when it is lowered, the convertible's
flush-folding roof retracts completely into the bodywork behind the
rear seats, under a smooth cover that retains the elegant, sporty
lines of the car.
Nor does the convertible compromise the new XK range's safety,
for its roll-over protection system, which remains hidden unless it
is needed, deploys instantaneously as necessary to provide
occupants with the highest levels of protection.
For both coupé and convertible, the latest trim and
feature enhancements are highlighted by the JaguarDrive
Selector™, which is very neatly and elegantly packaged in the
centre console. The welcome to the car is also enhanced by new,
bright treadplate inserts. Many of the other changes emphasise very
high levels of Jaguar craftsmanship with new jewel-like touches.
The three-spoke steering wheel now has a leather-wrapped lower
spoke, and Jaguar's striking 'growler' badge. The new XKR's
instruments now further emphasise its performance character with
red pointers, while all models adopt a new white illumination for
their instruments.
The XK and XKR now have 16-way adjustable seats with heating and
memory functions, adjustable side bolsters and new cooled seats as
standard.
The door casings are even more luxuriously crafted than before,
with saddle-stitched lines and a new interlayer to give a softer
touch to the top shoulder of the casing. The leather door pulls
also introduce twin-needle stitching and a soft-feel interlayer. In
each door, the modified seat switch pack now includes single-piece
chrome 'highlight' switches.
There is a wide choice of interior colour options, including a
new combination of Ivory seating with Oyster upper cabin trim and
Oyster carpets.
Real wood veneers remain an important part of Jaguar
craftsmanship and now include a new Rich Oak veneer option for the
XK. The new XK also offers the choice of Ebony, while the new XKR
offers its own unique alternative in Dark Oak. A Knurled Aluminium
veneer is also available on XK, while Dark Mesh Aluminium is
available on XKR.
Body architecture
Globally recognised as one of the key elements in Jaguar's
intelligent use of advanced technology, the XK's industry-leading
lightweight architecture constructs the entire body shell (the
internal chassis structure and external body panels) from a
combination of pressed, cast and extruded aluminium alloy
components. These are riveted and bonded together using techniques
originally developed in the aerospace industry and adapted for
automotive use by Jaguar.
The result is a body shell with a depth of quality that is
rooted in the highest structural integrity.
It is also the lightest shell in its class by a significant
margin and the most torsionally stiff. That all-round strength,
remarkable rigidity and exceptional lightness underpin many aspects
of the XK's excellence, from fuel-efficient performance to its
inherent safety, durability and refinement - and, of course, its
precise chassis dynamics.
Mike Cross, Vehicle Integrity Chief Engineer, explains the
benefits of this advanced body architecture:
"Lightness benefits agility, and agility with high
performance defines the exhilarating yet refined nature of the
Jaguar XK. It accelerates harder, stops more quickly and handles
with true precision - setting new standards of dynamic
excellence."
All-new XK Powertrain Technology
- New AJ-V8 Gen III engines are more compact, more efficient and
much more powerful
- 283kW, 515Nm, 264g/km CO2, 11.2 l/100km combined fuel economy
(naturally aspirated)
- 375kW, 625Nm, 292g/km CO2, 12.3 l/100km combined fuel economy
(supercharged - the Gen IIIR)
- Conforms to EU 5 emissions regulations
- High efficiency, sixth-generation twin vortex supercharger on
Gen III R engine
- Central spray-guided direct-injection increases efficiency and
torque
- Torque-actuated variable camshaft timing on all four camshafts
for improved response and efficiency
- Cam profile switching in naturally aspirated engine
- Variable-geometry inlet manifold on naturally aspirated engine
further increases low and high-end torque
- Low-friction design optimises fuel consumption
Since the first XK was launched in 1948, generations of powerful
yet refined engines have played a crucial role in establishing the
unique character and pedigree of Jaguar cars. Now, the new
5.0-litre direct-injection engines continue that tradition,
delivering increased power and torque with reduced emissions and
impressive fuel economy. Available in two versions, the 375kW
supercharged V8 petrol and the naturally aspirated 283kW version,
the new AJ-V8 Gen III engines exemplify Jaguar's reputation for
innovation and engineering excellence.
Commenting on the new engine range, Ron Lee, Powertrain Group
Chief Engineer, said:
"We set ourselves the challenge of developing an
all-new V8 engine series that improved on the performance and the
refinement of the excellent 4.2-litre, with comparable fuel economy
and improved emissions. We have achieved that with the AJ-V8 Gen
III - a superbly responsive power unit of unsurpassed
efficiency."
Jaguar's all-new petrol V8s have been designed in-house, using
the expertise of powertrain engineers at Jaguar's advanced research
and development centre at Whitley, Coventry, UK.
Malcolm Sandford, Engine Group Chief Engineer, explains the
concept behind the project:
"The emphasis was on delivering efficiency, superior
dynamic response and highly accessible low-end torque suited to
real-world driving, without compromising power at higher engine
speeds."
The results are clear to see. Performance has been increased by
29 percent and 23 percent on both naturally aspirated and
supercharged engines yet both the naturally aspirated and
supercharged engines meet EU 5 emissions regulations. Despite the
significant increases in power, CO2 emissions of the naturally
aspirated engine improve on that of the outgoing 4.2- litre V8,
while the supercharged engine also produces less CO2 than its
predecessor.
Top of the class in more ways than one
Both new AJ-V8 Gen III petrol engines are state-of-the-art in
every sense. The technicalfeatures have been engineered to deliver
unparalleled efficiency, refinement, power and torque for which
Jaguar is famous, combined with the lowest possible emissions.
Low-speed torque characteristics and throttle response are
world-class.
Summarising this achievement, Jaguar Programme Director, Mick
Mohan, said:
"These engines have been designed by our Powertrain
team of over 800 people for the next generation of Jaguar cars.
They deliver fantastic straight-line performance and response which
is second to none. The combination of power, refinement and
driveability is what our customers expect of Jaguar. They are
smooth around town, but when you want to drive quickly, the engines
are hugely responsive and deliver that classic, Jaguar sound
quality."
Light, robust and very strong
The new V8 engines are built around a stiff, all-new, aluminium
block with cast-in iron liners and cross-bolted main bearing caps
to reduce noise, vibration and harshness. For the first time at
Jaguar the blocks are high pressure die-cast, providing a superior
finish and greater dimensional accuracy. The engines use aluminium
heads, with four valves per cylinder and strong,
spheroidal-graphite cast-iron crankshafts and forged steel
connecting rods. The cylinder heads for the first time are
specified with a secondary (recycled) aluminium alloy thus reducing
the environmental impact of manufacturing the new engine.
The new 5.0-litre direct injection petrol engines are more
compact than their predecessors.
Overall engine length has been reduced by 24mm by relocation of
the oil pump within the engine architecture. This length reduction
improves engine bay packaging in support of enhanced safety cell
performance while ensuring overall engine weight is virtually
unchanged.
New supercharger - more for less
A sixth-generation, twin vortex system (TVS) supercharger is
fitted to the XKR's 375kW engine. It is a compact Roots-type unit,
feeding air through twin intercoolers, which in turn are
water-cooled by their own discreet cooling circuit. The high helix
rotor design improves the supercharger thermodynamic efficiency by
16 percent over its predecessor. It also improves noise quality to
the point where the unit is now virtually inaudible (making
supercharger whine a thing of the past). The intercoolers reduce
the temperature of the pressurised intake-air and so optimise power
and efficiency.
The new air intake has been radically redesigned compared to the
previous V8. The intake air path is a direct feed to the
supercharger inlet from the centrally mounted front throttle body.
Air is delivered through twin air boxes, which reduce flow loss and
further increase efficiency.
Mechanically, the new supercharger and its intercoolers are
efficiently packaged in the 'V' of the engine to deliver a low
overall engine height in support of pedestrian safety
requirements.
Industry-first direct injection - power with
economy
One of the key features of the new petrol engines is an
industry-first, centrally-mounted, multihole, spray-guided fuel
injection system, delivering fuel at a pressure of up to 150bar
directly to the cylinder. This substantially contributes to
improved low-speed, dynamic response. The positioning of the
injectors ensures fuel is precisely delivered to the centre of the
combustion chamber, maximising air-fuel mixing, and improving
combustion control. Fuel is delivered via twin, high-pressure fuel
pumps that are driven via auxiliary shaft in the all-new engine
block.
The charge cooling effects of the direct-injection fuel system
have allowed the compression ratio of the naturally aspirated
engine to be raised to 11.5:1, further improving the engine
economy. The supercharged engine also benefits from an increase
from 9.0:1 in the previous
4.2-litre to 9.5:1.
During the engine warm-up phase, the combustion system employs
multiple injection mode strategies to deliver 50 percent more heat
for fast catalyst warm-up and substantially reduced emissions.
Torque-actuated variable-camshaft timing improves
efficiency
A new type of variable camshaft timing system (VCT) introduces
another new technology. The four VCT units are activated by the
positive and negative torques generated by opening and closing the
intake and exhaust valves, instead of by oil pressure. This has
allowed the engine
oil pump to be reduced in size, saving energy and reducing fuel
consumption.
VCT units work independently on all four camshafts with 62
degrees of authority on the inlet cams and 50 degrees of authority
on the exhaust cams. Timing is optimised by the engine control unit
for torque, power and economy at every point in the engine's speed
range.
The new VCT units are capable of a response rate up to three
times faster than before, with actuation rates in excess of 150
degrees per second.
This delivers a more immediate engine response to the driver's
demand.
The naturally aspirated engine is also equipped with camshaft
profile switching (CPS) on the inlet camshaft. Depending on the
engine's running conditions and the demands of the driver, the CPS
will switch between a profile that is ideal for low-speed driving,
and another which gives increased valve lift for high
performance.
Hydraulically-actuated two-piece tappets switch between profiles
on the tri-lobe camshaft altering both the lift and duration. The
cam lobe profile selected for lower engine speeds has a duration of
214° and lifts the valves 5.5mm. This optimises gas velocity
for improved lowspeed
torque and reduces valve train friction for improved fuel economy.
For high-speed driving, CPS switches to a cam lobe with a duration
of 250° and valve-lift of 10.5mm, allowing greater air flow
into the engine for high power. Switching is activated at 2800rpm
at high load, ranging to 4500rpm at light load conditions.
Variable Inlet Manifold optimises torque through the rev
range
A new variable inlet manifold (VIM) can vary the length of its
eight inlet tracts to optimise power and torque throughout the rev
range on the naturally aspirated engine. Vacuumoperated actuators
open valves to select a longer, 680mm, inlet tract at low revs,
increasing the rate of both the airflow and the engine torque. As
the revs climb beyond 4700rpm, the actuators select a shorter,
350mm path allowing a greater volume of air into the engine to
optimise engine power. The actuator position is optimised by the
engine control unit for improved torque throughout the engine speed
range.
Reverse cooling turns up the heat
Every component in both V8 engines has been optimised for
efficiency, performance, low-end torque and reliability. An
innovative reverse-flow cooling system design has been employed to
deliver thermodynamic and friction improvements. The reverse-flow
cooling system pumps coolant through the cylinder heads before
flowing through the block and returning to the radiator. The
resulting cooler cylinder heads allow more optimum, knock-free,
ignition timings to be used to improve efficiency.
In addition, the 22kW oil-to-water heat exchanger, packaged at
the core of the engine, transfers heat from the coolant to the
lubricating oil during warm up, bringing the oil up to operating
temperature 14 percent faster than the previous cooling system.
This improves fuel consumption in the crucial engine warm-up period
by approximately 1%.
Reducing friction - something for nothing
Minimising internal friction is key to improving fuel
consumption and CO2 emissions, and as such was a key aim when it
came to the design of the engines. As a result, the new Jaguar
AJ-V8 Gen III engines achieve another best in class, setting a new
industry benchmark for cranktrain efficiency.
All engine bearings were the subject of an extensive
optimisation programme, reducing friction without compromising
reliability. Diamond-Like Carbon Coating (DLC) has been used to
reduce friction on the fuel pump tappets and a solid film lubricant
has been used to coat the piston skirts. Both V8 engines are now
fitted with an electronic dipstick feature for added peace of
mind.
Unique, Jaguar sound quality
Sound quality is a key characteristic of all Jaguars and is one
particular aspect that customers relish. With that in mind, Jaguar
engineers have accentuated the acoustic feedback into the cabin in
order to further enhance the driving pleasure.
The XK's exhaust sound track has been enhanced to provide a
deeper and more powerful character that matches the increase in
torque at low revs from the new engine. At higher engine speeds the
intake acoustic feedback system combines with the exhaust system to
provide more of that unique Jaguar sound quality character.
In addition to the fully active exhaust system in which valves
open to provide a more rewarding note, the new XKR has been
engineered to provide an intake feedback system to enhance the V8
sound character commonly absent on supercharged engines. Intake
manifold pressure pulsations are fed into an acoustic filter at the
rear of the engine that is tuned to provide an edgy sports car
crescendo at high revs. The filter is controlled by the engine
management system, which only allows the sound to enter the cabin
under the appropriate driving conditions.
The new intake feedback system combined with the fully active
exhaust system provides the most exhilarating sound track yet
delivered on a Jaguar.
New, integrated transmission completes the
package
Any transmission is a major factor in delivering the performance
that drivers desire, while integrating with the engine to optimise
emissions and fuel consumption. Jaguar's acclaimed electronically
controlled, six-speed ZF 6HP28 transmission offers an unparalleled
combination of driver control matched to virtually undetectable
gearshifts. With control either from steering wheel-mounted paddles
or full automatic mode via the JaguarDrive SelectorTM, the new XK
range delivers exhilarating performance.
The supercharged V8 engine with 375kW and 625Nm of torque
transmits power through an uprated version of the ZF 6HP28,
additional clutch plates and an uprated torque converter having
been added to the transmission to accommodate the extra power.
The transmission has a fully-adaptive shift system which
delivers seamless gearshifts and optimises performance and economy
at all times. It also continually adapts to suit driving style,
which can vary from sporting to more economical. The 'mechatronic'
control module incorporated inside the transmission includes the
software for the semi-automatic Jaguar Sequential Shift function,
selected when the driver operates either of the two steering-wheel
paddles.
The high levels of torque produced by the new engines make it
possible for the torque converter lock-up feature of the
transmission to be used even at low speeds, without slip. This
approach provides an additional fuel consumption benefit,
contributing to the official combined fuel economy of 12.3 l/100km
in the XKR. The advanced design of the transmission also includes a
torsional damper to absorb firing impulses from the engine, further
smoothing the driveline. The transmission is designed to be
maintenance-free and the fluid is 'filled-for-life.'
Another first for Jaguar is the new Active Differential Control
(ADC), the final stage of the supercharged V8 driveline, which is
designed to give improved traction and dynamic stability.
The electronically controlled differential continuously adapts
to both the driver's demands and the amount of grip available at
each individual wheel. Operated by an internal electric motor and
'ball-and-ramp' mechanism, the differential contains a multiplate
clutch which transmits or 'vectors' torque to the wheel with most
grip and therefore maximises the car's traction. The multi-plate
clutch assembly is designed to prevent excessive differential slip,
but differs fundamentally from a conventional traction control
system, which uses the brakes to counteract differential slip,
after it has occurred.
For the first time, the new XK range introduces the innovative
JaguarDrive Selector™ as its transmission control interface.
First seen on the Jaguar XF saloon, the JaguarDrive Selector™
features a rotary shift control which rises into the driver's hand
as the car is started, to give intuitive, ergonomically efficient
transmission control from an extremely neat, space-efficient
interface.
The selector is, in fact, much more than just an unobtrusive yet
completely practical solution to selecting an automatic gear mode.
For it also imbues the car with a strong driver 'handshake'.
Get into an XK and the start button in front of the JaguarDrive
SelectorTM pulses red, like a heartbeat. Press this button to start
the engine and the cast alloy JaguarDrive SelectorTM rises into the
palm of your hand.
From there, automatic transmission functions are selected simply
by turning the control with the fingertips. As an example, Drive to
Drive Sport selection is accomplished with a simple push and turn
action. Returning from S to D, the rotary control operates with
springassistance, which eliminates the need to pull the Selector.
It couldn't be simpler. And when the engine is stopped, the
JaguarDrive Selector™ returns automatically to its Park
position.
Driving Dynamics
"The XK has always been an exceptional sports GT,
now it has evolved into something even more exhilarating in the
form of the XKR. With huge reserves of power and torque it sets new
standards of dynamic balance, succeeding in being both very potent
and rewarding yet balanced and accessible at the same
time."
Mike Cross, Vehicle Integrity Chief Engineer.
The new 'handshake' of the JaguarDrive Control is a subtle
reminder of the new XK range's further enhanced sporting character
and superb dynamics, that make the driving experience exceptionally
exciting and rewarding, as expected of a true sports car and a
classic grand tourer. The latest generation of Adaptive Dynamics
replaces Jaguar's proven Computer Active Technology Suspension
(CATS) with an even more sophisticated solution. Active damper
tuning systems remove many of the compromises of a passive damping
system - which must make a single choice between softer damping for
a comfortable ride and firmer damping for more tautly controlled
handling. CATS overcame that compromise with automatically
switchable damping modes, adapting to the road and how the car was
driven. But where CATS only offered two settings: 'soft' and
'firm', the new Adaptive Damping System in effect provides a
continuously variable damping strategy between wide extremes,
benefitting ride comfort, ultimate control handling and grip.
Its three primary functions are to control body vertical
movement, roll rate and pitch rate. One hundred times a second,
Adaptive Damping analyses induced body motions and sets each damper
to an appropriate level in order to maintain a constant and level
body attitude - optimising control without compromising ride. Also
one hundred times a second, it predicts the roll rate due to
steering inputs and selectively increases damping forces to reduce
the roll rate - improving handling feel and driver confidence. And
one hundred times a second, Adaptive Damping analyses fore and aft
pitch rate due to throttle and braking inputs and again varies
damping forces to reduce pitch - further improving comfort and
control.
Additionally, Adaptive Dynamics improves ride quality by
monitoring wheel position five hundred times a second and
automatically increasing damping rate as the suspension approaches
the limits of its travel. Similarly it controls wheel hop on uneven
roads by varying damping to move any wheel out of its natural
bouncing frequency.
From the cabin, the JaguarDrive Control™ interface allows
the driver to interact with Adaptive Dynamics by selecting modes
for different driving conditions and moods. In Dynamic Mode,
Adaptive Dynamics increases body control for a sportier feel.
Dynamic Mode also interacts with the management electronics to give
a more responsive accelerator pedal reaction and quicker gearshift
responses.
Winter Mode was introduced on the XF and makes its first
appearance in the XK range here, adding another element of dynamic
subtlety. Where Dynamic Mode offers a more sporty feel, Winter Mode
offers a more damped accelerator pedal response for progressive
control in slippery conditions, with bespoke shift settings that
delay and soften gearshifts, again for better control with low
grip.
In keeping with its additional power and performance, the new
XKR offers the most sophisticated dynamic control of all, with
Active Differential Control and Adaptive Dynamics operating in
tandem to offer JaguarDrive Optimisation™. This fully
integrates the functions of JaguarDrive Control™ and Adaptive
Dynamics with the new Active Differential Control (ADC) - an
electronically controlled alternative to the traditional mechanical
limited-slip differential, with far more subtle control
strategies.
ADC is fully automatic and can vary its locking torque (and
therefore the proportion of torque sent to each driven wheel)
depending on surface conditions and power applied. Its subtle
control strategies optimise traction at each wheel, improving
acceleration on low-grip surfaces but also potentially improving
stability when required.
Working with other systems such as traction control and the ABS
braking function, ADC can significantly improve overall vehicle
performance, and provide more precise driving feel.
While the less powerful XK models do not adopt the Active
Differential Control of the XKR, they do still utilise a new
upgraded mechanical differential, which delivers outstanding levels
of grip and stability under power.
The Dynamic Stability Control system for the new XK range has
bespoke tuning and offers four driver-selectable modes, Normal,
Winter, Trac DSC and DSC OFF, for all models. Normal mode is ideal
for everyday driving and is the default setting activated
automatically on starting.
The Winter mode - introduced for the first time on the XK range
- is designed to improve drivability and confidence in more
slippery conditions. Trac DSC mode is a sportier setting allowing
the experienced driver fully to exploit the car's performance and
enjoy greater involvement in controlling it. DSC OFF allows the
driver (where circumstances are appropriate) to switch the system's
electronic protection off completely, by pushing the DSC control
button for ten seconds.
Technology and driving aids
The new XK and XKR, in both coupé and convertible form,
offer a number of other driver aids that exploit the latest
advanced technology. Staying faithful to its well-established
principles, Jaguar uses these technologies to empower, not to
overpower the user - enhancing driver
and passenger enjoyment rather than risking high-technology
overkill.
Among the new XK range's practical features are intelligent
front lighting incorporating bixenon automatic headlamps with power
wash; dynamic headlamp levelling; corner lights that are activated
by the direction indicators to improve visibility while cornering;
and standard
Active Front Lighting. Standard equipment across the new XK range
also includes air sensors to optimise cabin air quality through the
climate control system, keyless entry and keyless start, cruise
control, electro-chromatic fold-back exterior mirrors, and front
and rear Park Assist.
Safety
As well as the convertible's hidden, automatic roll-over
protection, every car in the new XK range features Jaguar's
pedestrian deployable bonnet system. In the event of a collision
with a pedestrian, it raises the bonnet by 170mm in just 30
milliseconds to provide a clear space between the surface of the
bonnet and the hard points underneath, to reduce the severity
particularly of head injuries while still allowing the new XK low
bonnet line. An energyabsorbing bumper system also helps minimise
lower leg injuries to pedestrians.
Jaguar's Emergency Brake Assist is standard on the new XK and
Advanced Emergency Brake Assist is fitted to all models with
Adaptive Cruise Control (ACC). Advanced Emergency Brake Assist uses
the ACC radar to calculate distance from and speed of approach to
the vehicle ahead and pre-charges the brake-line pressure to
minimise impact speed if a collision is predicted - with an audible
warning to the driver.
For the occupant, every car in the new XK range includes front,
side and thorax airbags, incorporating new technology which reduces
the load on the occupant's body if the front airbag is deployed.
Jaguar's Adaptive Restraint Technology System checks for seat
occupation and seatbelt use, seat position, and the direction and
severity of any impact, and uses all that information to determine
the appropriate level of airbag deployment in any incident.
Additionally, Jaguar's Protec front head restraint system protects
against whiplash in the event of a rear impact.
Stylish new wheels
The new XK range introduces new alloy wheel designs:
The new 19-inch ten-'V'-spoke Caravela wheel is standard on
XK.
The twin-five-spoke 20-inch Kalimnos wheel will be standard on
the XKR, while the twinseven- spoke R Performance Nevis design is a
unique option for the XKR, and an addition to the wheel range.
With the recent addition of new options Claret, Spectrum Blue,
and Kyanite Blue, the stunning exterior colour range for the new XK
and XKR is extended to 15 colours; two of which - Salsa and Kyanite
Blue - are reserved exclusively for XKR.
Equipment
In true, contemporary Jaguar fashion, a great deal of useful and
intuitive technology is controlled by the clear and elegant
seven-inch Touch-screen in the centre console - which is standard
on all models. The Touch-screen provides access and control for the
Climate Control and Audio systems, for the Satellite Navigation
System, for Bluetooth mobile connectivity, and for Jaguar's
Portable Audio Interface - which are all standard equipment. The
satellite navigation system offers DVD mapping. The Portable Audio
Interface offers iPod connectivity, and the connection of other
storage devices through a USB port, to the in-car sound system,
with full Touch-screen control.
"The XK has always been an exceptional sports car.
Now, it has evolved into something even more exhilarating,
combining Jaguar's legendary performance, new advanced technologies
and crafted luxury to create a sports car without
parallel."
Mike O'Driscoll, Managing Director, Jaguar Cars.
For further information please contact:
Tim Krieger
Marketing and Public Affairs Manager
Jaguar Australia
Phone: (02) 9020 1505
Email: tkrieger@jaguar.com
Website: www.jaguar.com.au
Narine Salmasi
Marketing and Public Affairs Specialist
Jaguar Australia
Phone: (02) 9020 1507
Email: nsalmasi@jaguar.com
Website: www.jaguar.com.au