2011 PORSCHE BOXSTER S steering

1Independence |
Design
Interior.
The interior of the new Boxster models
delivers exactly what the exterior
promises. Light, uncluttered and defined;
everything is conceived with one goal in
mind: the perfect drive.
The power, the contouring, the driver’s
vision, indeed the entire concept, are all
drawn in the direction of travel. The intel -
ligent operating concept and the logical
arrangement of the controls keep the
driver’s concentration purely on the road.
The elevated centre console cocoons the
driver perfectly and reduces the distance
from the steering wheel to the gear lever
for fast and ergonomic gearshifts. It ’s just
one of many principles that we’ve trans -
ferred from the racetrack to the road.
The door st yling is similarly dynamic. The
door pulls mirror the lines of the centre
console and blend seamlessly into the
distinctive design. The door storage com -
partments are sweeping and practical.

As you would expect from a sports car,
the driver sits low down. Sports seats
are fit ted as standard. The athletic pro -
portions of the new Boxster models made
it possible to introduce a new interior
architecture. The result is a feeling of
space and light without compromising
the authentic roadster experience.
Are you ready to assert your independ -
ence? The ignition lock, as ever, is on the
left. The three-spoke sports steering
wheel falls perfectly to hand. As is t ypical
of a Boxster, there are three circular dash -
board instruments. The instrument on the
right is now a 4.6-inch TFT screen that
shows information from the on-board
computer or audio information from the
CDR audio system, which is fit ted as
standard. An inconspicuous shroud shades
the instruments for optimum visibility.
The steering wheel rim, gear lever/selec -
tor and door pull inlays are finished in
tactile leather. Silver-coloured details add
to the refined tone; these include the

How much independence do we really have?
It’s a question of inner attitude.
Design.
dashboard trim strip, the side and centre
air vent surrounds and the centre con -
sole. As an option, the sport y elegance
of the new Boxster models can be fur -
ther enhanced with a comprehensive
suite of interior trims and upholsteries.
1 Boxster S with natural leather interior in Carrera Red,
SportDesign steering wheel and other optional
equipment

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What use is expertise if it isn’t put into
practice and applied to the road?
In the Boxster, the 2.7-litre horizontally
opposed six cylinder engine delivers
195 kW (265 hp); in the Boxster S, the
3.4 - litre equivalent generates 232 kW
(315 hp). Both mid-mounted engines
feature direct fuel injection (DFI) and Vario -
Cam Plus for a significant increase in both
power output and efficiency. The SPORT
but ton on the centre console is fit ted
as standard and opens up even more agile
responses. Power is transmit ted to the
wheels by a light weight six-speed manual
gearbox or the optional 7-speed Porsche
Doppelkupplung (PDK).
A series of innovative technologies is key
to achieving exemplary efficiency. As
standard, these include the auto start/stop
function, electrical system recuperation,
energy-saving electromechanical power
steering, intelligent thermal management
and, in conjunction with PDK, the coast -
ing function. The result, The result is a
significant reduction in fuel consumption
and, therefore, a reduction in CO
2 emis -
sions of up to 16 % compared with the
previous model (depending on the equip -
ment variant).
Porsche Stability Management (PSM)
provides stabilit y at the limits of sport y
performance. Available as an option,
Knowledge should never
be confined to books.
Engineering.
enhanced Porsche Active Suspension
Management (PASM) of fers continuous
adjustment of damping forces based on
the selected mode. Dynamic per formance
can be further improved with optional
Porsche Torque Vectoring (PTV). The
optional Sport Chrono Package includes
dynamic gearbox mounts for the first
time. They contain a fluid with magnetic
properties, which enables them to adapt
instantly to driving conditions and counter -
act the effects of inertia. The results are
perceptibly more stable handling during
performance driving, as well as a higher
level of ride comfort. The brakes at the front axle have a
greater
surface area for improved braking perfor -
mance. The Porsche Ceramic Composite
Brake (PCCB) is available as
an option.
The hood on the new Boxster models
makes it easy to clear your head. Fully
electric, it opens and closes in around nine
seconds and is operable up to a speed of
approx. 30 mph (50 km/ h).
The intelligent lightweight construction,
which uses aluminium for substantial
parts of the bodyshell, doors and luggage
compartment lids, helps to achieve an
excellent power-to-weight ratio.
For fuel consumption and CO2 emissions please refer to page 127.

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Engine
For fuel consumption and CO2 emissions please refer to page 127.
The engine will restart as soon as you
operate the clutch or, in cars with PDK,
release the brake. This fuel-saving inno -
vation is designed primarily for use in
towns or congested motorway traffic.
The auto start /stop function can be
deactivated and reactivated using a sepa -
rate but ton on the centre console. The
function may be deactivated automatically
under particular circumstances, e.g. in
extreme outside temperatures, when the
SPORT but ton is selected or when there
is low bat tery charge.

Cruise control.
This optional automatic speed controller
for the 19 to 149 mph (30 to 240 km/ h)
speed range is operated using a switch
on a separate control stalk on the steering
column. The advantages are claer, not
only can cruise control be used as a
means of staying within the speed limit,
it also helps you to save fuel by maintain -
ing a constant speed.
Electrical system recuperation.
For enhanced efficiency the new Boxster
models are equipped with intelligent elec-
trical system recuperation. The vehicle
bat tery is recharged by the generator
predominantly under braking. Thanks to this selective recharging, when you
request full driving power the maximum
possible output can be directed straight
to the road.
Servicing.
In the Boxster models, the generator and
air conditioning system are driven by a
single self-adjusting belt. The drive chains
on the camshafts do not normally require
servicing. With the sole exception of the
spark plugs, the ignition system is also
maintenance-free in normal servicing. In
short, longer service intervals mean longer-
lasting driving pleasure.

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Six-speed manual gearbox.
The new Boxster models are equipped
as standard with a light weight six-speed
manual gearbox. Gearshifts are smooth
and optimally adapted to the respective
engine map. Shift throws are short and
sport y and the gear lever is easy to oper -
ate, enabling a rapid gearshift action and
providing a truly engaging driving experi -
ence. The upshift indicator located in the
central circular instrument helps you to
maximise fuel efficiency.
The elevated centre console gives you an
authentic sports car feel. It positions the
gear lever close to the steering wheel, which enables you to change gear as fast
and as ergonomically as possible.
Porsche Doppelkupplung (PDK).
Available as an option for the new Boxster
models is a completely retuned 7-speed
Porsche Doppelkupplung (PDK), featuring
both manual and automatic modes. PDK
offers extremely fast gear changes with no
interruption in the flow of power, improved
acceleration over the manual gearbox, very
short response times, reduced fuel con
-
sumption and a distinct increase in comfort.
In total, PDK has seven forward gears at its
disposal. Gears 1 to 6 have a sports ratio
Act or relax as you please.
Transmission.
and top speed is reached in 6th gear. The
7th gear ratio is longer and keeps engine
speed low to improve ride comfort and
reduce fuel consumption at higher speeds.
The design of PDK is similar to t wo
conventional gearboxes in one. The odd
numbered gears are housed on one
assembly and the even numbered gears
on another, each having its own clutch.
While one gear is engaged, PDK pre-
selects the next gear based on driver
input. When the next gear is requested,
drive is switched from one clutch to
the other in milliseconds, delivering gear
changes with no loss of drive.
For fuel consumption and CO
2 emissions please refer to page 127.
1 Gear lever for six-speed manual gearbox
2 PDK gear selector
3 PDK gearshift switches on multifunction
steering wheel
4 Porsche Doppelkupplung (PDK)
H a l f ge a r b ox 1: ge a rs 1, 3, 5, 7, R
Half gearbox 2: gears 2, 4, 6

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Chassis
In ‘Sport ’ mode, the suspension is set
to a harder damper rating. On uneven
roads, PASM immediately switches
to a softer rating, thereby improving
contact bet ween the t yres and the
road. When the road surface improves, PASM automatically reverts to the

original, harder rating. If ‘Normal’ mode is
selected and the driver’s st yle becomes
more assertive, PASM switches to a

harder rating to increase driving stability
and road safet y. The results are tangible: increased driving
stability, enhanced driving pleasure and
improved performance.
Steering.
One definition of efficiency is a system

that works only when it is needed, and then
does so in a particularly effective way.
This was the guiding principle for our
engineers in the development of the new
electromechanical steering system.
Whereas a conventional hydraulically
assisted steering system draws engine
power continuously, the electric motor
in the electromechanical arrangement
uses energy only when the steering

wheel is actually turned. As a result, fuel
consumption is reduced and the absence of hydraulic fluid eliminates the need for
servicing, both of which also have benefits
for the environment.
The Boxster concept was designed to of fer
outstanding cornering performance. The
new steering system delivers and it even
improves the typical Porsche steering feel. It features a variable steering ratio and
responds precisely and directly as well as
providing customary agility, a high level of
comfort and plent y of direct feedback from
the road. Power steering Plus, the optional
speed -sensitive power-steering system, mini
-
mises steering ef fort during manoeuvring
and parking.
1 Front a xle of the Boxster S
2 Rear axle of the Boxster S

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Porsche Torque Vectoring (PTV).
This optional system for increasing
dynamic performance and stability varies
the distribution of torque to the rear
wheels and includes a mechanically lock -
ing rear differential. When the car is driven assertively into

a corner, moderate brake pressure is
applied to the inside rear wheel. Conse -
quently, a greater amount of drive force
is distributed to the outside rear wheel,
inducing an additional rotational pulse (yaw movement) around the vehicle’s

vertical axis. This results in a direct and
sport y steering action as the car enters
the corner. At low and medium vehicle speeds, PT V
significantly increases agilit y and steering
precision. At high speeds and when

accelerating out of corners, the rear differ -
ential lock ensures greater driving stabilit y on a range of surface conditions, includ
-
ing the wet and snow.
The results are remarkable stabilit y, easier
handling and outstanding traction as
well as
greater agilit y at every speed with
For ward thrust |
Chassis
precise steering and stable load transfer
characteristics. What else? As ever, lots
of
excitement at every t wist and turn.

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Sport Chrono Package.
Time is precious and every hundredth
of a second counts. The optional Sport
Chrono Package makes your driving experi -
ence priceless thanks to an even sportier
tuning of throt tle response and handling
characteristics.
The package comprises dynamic gear-
box mounts, a per formance display,
a digital and analogue stopwatch and
the SPORT PLUS but ton. When this
is pressed, optional Porsche Active
Suspension Management (PASM) switches
to ‘Sport ’ mode for harder damping
and more direct steering and therefore,
even more intensive road holding.
The trigger threshold for PSM is raised.
Agilit y is perceptibly enhanced when
braking for corners with PSM, allowing
even sportier braking and exit acceleration.
For even greater dexterit y, PSM can be set to standby while the car is still in
SPORT PLUS mode. For safet y, it is set
to intervene automatically only when ABS
assistance is required.
In conjunction with optional PDK, the Sport
Chrono Package comes with t wo additional
functions for a sport y drive that borders
on a motorsport experience. The first
is ‘Launch Control’, which is designed to
produce a racing start.
The second function is the involving

‘motorsport- derived gearshif t strategy’.
Using this, Porsche Doppelkupplung (PDK)

is geared up for the shortest possible
shift times and optimum shift points,
while torque boosts during gear changes
provide the maximum possible accelera -
tion. This involving experience is further
enhanced by overrun downshifts
and the
throttle-blip function for uncompromising
driving pleasure.
An additional display in the steering wheel
or either the instrument cluster indicates
whether the SPORT or SPORT PLUS
but -
tons and, with PDK, Launch Control have
been activated. In conjunction with the
optional Porsche Communication
Management (PCM), a special display
enables you to view, store and evaluate
lap times or other driving times. It shows
the total driving time, lap distance, lap
number and lap times recorded so far.

Performance is further intensified by
dynamic gearbox mounts. Read on to find
out more.
1 Sport Chrono display on the PDK steering wheel
2 Sport Chrono stopwatch
3 SPORT and SPORT PLUS but ton

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Chassis
Dynamic gearbox mounts.
Dynamic gearbox mounts are included
as part of the optional Sport Chrono
Package. They are designed to enhance
both performance and comfort.
The electronically controlled system
minimises the oscillations and vibrations of the entire drive train, especially the
engine.
The gearbox is bolted to the body by t wo
mounts. Like any mass, it obeys the law

of inertia. This means that it will continue
moving in a uniformly straight line unless
some force causes it to change direction. Put more simply: when you are driving
into a bend, the vehicle will follow your
steering but, at first, the mass of the
drive train will not. This means that the
rear of the vehicle will ultimately be
pushed out wards as a result of the drive
train’s force of inertia.
Dynamic gearbox mounts minimise this
effect. Steering angle and both longitudi
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nal and lateral acceleration are constantly
recorded by sensors. The stiffness and
damping performance of the gearbox
mounts adapt to changes in driving st yle
and road surface conditions, which is
achieved by use of a fluid with magnetic properties. This results in greater

traction, perceptibly more stable handling
under load change conditions and in
fast corners and, in conjunction with the
‘Launch Control’ function for example,
extremely fast acceleration. Using the SPORT or SPORT PLUS but ton
you can switch the dynamic gearbox
mounts from ‘Normal’ to ‘Sport ’ or

‘Per formance’ mode and intensif y your
driving pleasure. In conjunction with optional PCM, the
G -Force graphic on the TFT screen in

the right-hand circular instrument enables
you to view the lateral and longitudinal
forces as they act on the vehicle.
1 Dynamic gearbox mounts