2006 PORSCHE CAYMAN wheel

· 48 ·Rear axle with McPherson struts and lateral control arms (Cayman S) Front axle with McPherson struts and lateral control arms (Cayman S)The new Cayman and the Cayman S |
Chassis
Suspension.
A mid-engined layout with low
centre of gravity provides the
perfect foundation for agile,
dynamic performance. Combined
with a rigid bodyshell construction,
the potential benefits are multiplied.
All it takes to reap those benefits
and apply them to the road is a
suitable chassis concept.
On both Cayman models, that
chassis is based on McPherson-
strut suspension at front and
rear. Proven by Porsche on roadand track, this simple combination
of coil-over struts and lateral
control arms is key to the
character of the car. When
designing the suspension, the
absolute priority was to bring
maximum drive to the road. This
immediacy of response shouldalso be matched by the quality
of feedback and comfort.
To achieve those objectives,
we’ve used a generous ‘track’
or distance between the wheels
on each axle. Springs, shock
absorbers and anti-roll bars are
rated for high-speed cornering.
Lightweight materials, intelligently
applied, provide a further
reduction in sprung and unsprungmass. Virtually all moving parts
on the axle assemblies are made
from aluminium.
The resulting chassis is equally
accomplished during high-speed
manoeuvres and in tight, twisting
bends. There is no unwanted
movement within the suspension,
and virtually no susceptibility
to pitch and roll under cornering,
acceleration and braking.
Performance is matched by
exceptional active safety on every
type of road. The stability of the
car is extremely good, enabling a
sensitive response in every road
scenario. In simple terms, that
means greater reserves of safety,
regardless of load, as well
as natural resistance to lift-off
oversteer. Cornering stability
is second to none, even during
racetrack use.
The optimum connection
between driver and road.
Chassis systems on the new Cayman and the Cayman S.
· 49 ·

· 51 · · 50 ·The new Cayman and the Cayman S |
Chassis
Steering.
What use is a perfect suspension
setup without equally effective
steering?
At Porsche, we design these two
key elements as one inseparable
whole. The steering system has
an immediacy and precision that
exactly complement thesuspension. Every steering input is
instantly converted into a positive
and accurate response. This is
achieved through a combination
of high-precision front axle
kinematics and power-assisted,
rack-and-pinion steering with
variable-ratio gearing. At the
straight-ahead position, the ratio
is less direct, enabling smoother
manoeuvres during motorway use.Turn the wheel harder, and the
ratio increases, allowing easier
cornering and parking.
This immediacy of response is
backed by excellent road contact
and a modest turning circle of just
11.1 metres. The result: even
greater comfort and active safety.The standard three-spoke steering
wheel offers generous height and
reach adjustment. The steering
wheel rim has a leather finish in
your chosen interior colour. Two
additional three-spoke wheels –
multifunction and sports – are
available as optional equipment
(see pages 107 and 109).
Wheels.
The new Cayman comes with
17-inch wheels as standard
featuring an attractive twin-spoke
design. The Cayman S runs on
18-inch wheels with five-spoke
styling derived from the Carrera
GT. Both standard wheels have a
lightweight construction and run
flush with the exterior of the car.
A range of 18 and 19-inch wheels
are also available as optional
equipment (see page 105). All
standard and optional wheels
come with anti-theft protection.
18-inch Cayman S wheel17-inch Cayman wheel
Tyre Pressure Monitoring
(TPM).
This optional system provides
early warning of any drop
in pressure via the on-board
computer display.
Cayman S

· 53 · · 52 ·The new Cayman and the Cayman S |
Chassis
Porsche Active Suspension
Management (PASM).
PASM is an electronic damping
control system. Available on
both Cayman models, it offers
continuous adjustment of
individual damping forces based
on current road conditions and
driving style. Agility and driving
pleasure are significantly
enhanced while retaining the
car’s natural ride quality. Equipped
with PASM, the car rides 10 mm
lower than with the standard
steel-sprung suspension.
The driver can choose one of
two setup modes, ‘Normal’ or
‘Sport’. While the first is a blend
of performance and comfort, the
‘Sport’ setup ratings are generally
much firmer, enabling greater
agility on the racetrack. In either
mode, the system responds to
changing loads by automatically
applying the optimum damping
rate on each individual wheel.
The rates are selected from a
range of map options which are
specially adapted to the unique
dynamics of the Cayman and
Cayman S.
The movement of the body is
continuously monitored under
acceleration, braking and cornering
manoeuvres, as well as on poor
road surfaces. Other sensors
provide additional information on
lateral acceleration, steering
angle, brake pressure and engine
torque. A dedicated control unitprovides real-time analysis and
damper adjustment as defined
for the respective setup mode
(‘Normal’ or ‘Sport’). The result:
greater stability and more
consistent occupant comfort.
If, when ‘Sport’ mode is selected,
the quality of road surface drops
below a certain threshold, the
system immediately switches
to
a softer rating and restores
the car’s traction and grip.
When the road surface improves,
PASM returns to the original,
harder ratings. The system
remains active in ‘Normal’ mode,
too, automatically switching to a
harder setup if the car is driven
more assertively. As the dampers
become stiffer, the car becomes
more stable and driver control is
improved.
Rebound in ‘Normal’ mode –
damper piston with bypass
valve openRebound in ‘Sport’ mode –
damper piston with bypass
valve closed
Compression in ‘Sport’ mode –
damper piston with bypass
valve closed Compression in ‘Normal’ mode –
damper piston with bypass
valve open

· 64 ·The new Cayman and the Cayman S |
Safety
it can never suspend the laws of
physics, PSM does provide that
extra margin of safety whenever
you need it most. A key component
in PSM is a specially optimised
anti-lock braking system (ABS)
offering safer deceleration and
shorter braking distances. PSM
is also invaluable when applying
the throttle on low-grip surfaces.
Here, it uses the ABD (automatic
brake differential) and ASR
(anti-slip regulation) functions to
maintain traction and stability.
In order to retain the car’s natural
agility, PSM combines a high
trigger threshold with precision
input characteristics.
Porsche Stability
Management (PSM).
This automatic vehicle stability
control system is standard
equipment on both Cayman
models. Throughout each journey,
PSM uses a range of sensors to
monitor the direction, speed, yaw
velocity and lateral acceleration
of the car. Using this information,
it is possible to calculate the
actual direction of travel at any
given moment. If the car begins
to oversteer or understeer,
PSM applies selective braking on
individual wheels to restore
stability and optimum speed. WhileThe PSM threshold is raised
higher still when ‘Sport’ mode is
selected on the optional Sport
Chrono Package/Sport Chrono
Package Plus. The resulting
drive is much more involving,
particularly at speeds up to
around 70 km / h (44 mph). If
you’d rather enjoy the car
unassisted, the system can be set
to standby. When ‘Sport’ mode is
selected, PSM will only intervene
under heavy braking where both
front wheels are in danger of
locking. In ‘Normal’ mode, PSM
automatically becomes active
as soon as one of the front
wheels requires ABS assistance.The upper section of each door
features additional reinforcements
(3) which enhance the rigidity of
the car. This upper load path (4)
is used to channel energy into
the side of the car and thus
provide additional protection for
the passenger cell.
Passive safety.
Both Cayman models easily
comply with all statutory
requirements in respect of frontal,
side, diagonal, rear impact and
rollover protection.
The bodyshell structure contains
a highly resilient passenger
cell offering exceptional crash
protection. At the front of the
car, the cell is protected by a
patented system of longitudinal
and transverse members (1). In
the event of an accident, energy
is absorbed and distributed by
the front-end structure, thereby
minimising cell deformation.
Additional features include a
bulkhead cross-member (2) made
from super high-strength steel.
This element is designed to
absorb impact forces from the
longitudinal members and thus
protect both front footwells.
· 65 ·
Sheet steel
Tailored blanks
High-strength steel
Super high-strength steel
Aluminium
1
1
1
1
3
42
Cayman

· 73 · · 72 ·The new Cayman and the Cayman S |
Comfort
consumption, average speed,
range till empty and audio
information.
Steering wheel.
Both Cayman models have a three-
spoke leather steering
wheel with full-size airbag as
Instruments.
A single glance is all it takes –
particularly when it comes to the
instruments. The familiar Porsche
grouping of symmetrical round
instruments forms an integral
part of the cockpit design.Above the instruments is a
specially designed shroud with
semi-transparent grille. The dials
on the new Cayman have a black
background, while those on the
Cayman S have an aluminium-
coloured finish. Both sets of
instruments feature crisp white
backlight illumination. An integral
light sensor automatically adjuststhe degree of illumination to match
the ambient light conditions.
The dials provide a continuous
overview of all key information,
including external temperature,
time, trip odometer, total odometer
and vehicle speed. You can also
view a range of additional data
from the standard on-board
computer, e.g., average fuel
access to audio, navigation and
– if fitted – telephone functions
(only in conjunction with PCM).
For a detailed overview of the
available steering wheel options,
see pages 109-113. standard. Special features include
40 mm of height and reach
adjustment. A smooth leather
finish is available as an optional
extra on the steering wheel rim
and airbag module. Alternatively,
you can specify a three-spoke
sports or three-spoke multifunction
wheel. The latter is equipped with
six integral keys offering direct
Cayman dashboard with optional equipment, e.g., leather interior package with two-tone combination, PCM

· 87 · · 86 ·The new Cayman and the Cayman S |
Comfort
zoom layers available on the map
enable a finer gradation of scale.
The time displayed in both the
instrument cluster and the PCM
terminal is synchronised with the
standard GPS time.
Extended navigation module.
Available in conjunction with PCM,
this optional expansion module
enables automatic navigation
along a previously recorded route
(reverse route navigation). It also
facilitates compass and GPS-
based navigation in regions not
covered by your navigation DVD.
Porsche Communication
Management (PCM).
PCM is an optional multimedia
control and display system
featuring radio, CD player, audio
controls, on-board computer and
GPS navigation. It can also be
combined with an optional tri-band
telephone module. Key features
include a high-resolution 5.8-inch
colour display with 16 : 9 aspect
ratio. The menu structure is easy
to navigate using a multifunction
rotary push-button control. A 12-
digit keypad is also included for
dialling outgoing calls. The system
also provides easy access to the
performance display and memory
function included with the optional
Sport Chrono Package Plus.The DVD drive used for satellite
navigation is housed in the front
luggage compartment. One of the
benefits of this arrangement is
that the MP3-compatible CD drive
in PCM can be used exclusively
for audio CDs.
On-board computer.
The standard on-board computer
provides a wide range of
information, including average
fuel consumption, average speed,
range till empty and audio data.
It can also be used to view data
from the optional Tyre Pressure
Monitoring (TPM). Information is
accessed using a control stalk on
the steering column and viewed in the central instrument display.
If combined with the optional
PCM, you can access additional
data and functions such as
average values and driver-defined
speed-limit warnings. The control
stalk for the computer is also
used to select the analogue and
digital timing functions in the
optional Sport Chrono Package
(see pages 54/55).Navigation system.
The PCM navigation system
includes an intuitive menu
structure and dedicated DVD
drive. One of the main benefits
of DVD navigation is rapid route
calculation. The wide range of
Porsche Communication Management (PCM)
Electronic logbook.
This optional addition to PCM
enables you to automatically
record on every journey the
mileage, route distance, date and
time as well as starting location
and destination. Data can be
downloaded from PCM via the
infrared port and processed on
a PC using software included
with the package. This easy-to-
use option fulfils the statutory
requirements for automatic
logbooks as specified by the
German revenue authorities.
Telephone module.
Available in conjunction with PCM,
this optional GSM telephone
module has an integral hands-free
facility. The microphone is
concealed beneath the steering
column casing and is directed
towards the driver’s position.
Functions can be accessed using
dedicated keys on the PCM
terminal, a control stalk on the
steering column, or the optional
three-spoke multifunction steering
wheel.Special features include SMS
(text) messaging as well as card-
free calls to emergency services.
The antenna is located neatly
out of sight beneath the scuttle
at the base of the windscreen.
A passive (keyless) handset
offering greater call privacy is
available as an optional extra.
CDC-4 CD autochanger.
This optional CD autochanger
has a total capacity of six CDs.
Compatible with both the
standard audio system and PCM,
it installs neatly away in a
compact niche within the front
luggage compartment. Both
standard cars include a CD
autochanger preparation.

· 93 · · 92 ·
PersonalisationWhen we began designing the
Cayman model range, there was
one thing we couldn’t include:
your own personal touch. To help
you add that vital ingredient,
we’ve prepared a comprehensiverange of options. Together, they
offer enormous scope for
personalising your Porsche. You
can use them to express your
individuality and style in every
area of the car. From colour
combinations and interior
materials to a custom-engineered
sound system. Whatever you
choose to include in your
specification, the result is
uniquely yours.

Exterior

Engine, transmission
and chassis

Wheels

Interior

Audio and communication

· 105 · · 104 ·The new Cayman and the Cayman S |
Personalisation
19-inch Carrera S wheel
19-inch SportDesign wheel18-inch Boxster S wheel
19-inch Turbo wheel 19-inch Carrera Classic wheel
19-inch Carrera Sport wheel Porsche Ceramic Composite Brake (PCCB)Sport Chrono Package
Engine, transmission and chassis.
Option Cayman Cayman S I no. Page
• Tiptronic S (5-speed) • ••
•249 45
• Porsche Ceramic Composite Brake (PCCB)
–•
•450 62, 104
• Porsche Active Suspension Management (PASM)
• ••
•47 5 5 2
with ride height lowered by 10 mm
• Sport Package with 6-speed manual gearbox and PASM
• •– P04
• Sport Chrono Package•
••
•639 54, 104
•
Sport Chrono Package Plus (only in conjunction with PCM)• ••
•640 55
• Stainless steel tailpipe(s), chrome-plated
• ••
•XLA
• Sports exhaust system*
• ••
•XLF 41
• Short shifter
• ••
•XCZ
• Tyre Pressure Monitoring (TPM)
• ••
•482 51
Wheels.
Option Cayman Cayman S I no. Page
• 17-inch Boxster II wheel• •–393
• 18-inch Cayman S wheel
• ••401 51
• 18-inch Boxster S wheel
• ••
•397 105
• 19-inch Carrera S wheel
• ••
•403 105
• 19-inch Carrera Classic wheel
• ••
•405 105
• 19-inch SportDesign wheel
• ••
•407 105
• 19-inch Carrera Sport wheel
• ••
•XRR 105
• 19-inch Turbo wheel
• ••
•404 105
• Wheel centres with full-colour Porsche Crest
• ••
•446
• Wheels painted (includes wheel centres
• ••
•XD9
with full-colour Porsche Crest)
• 5-mm spacers
• ••
•XRP
* Introduction planned for 10/2006.