2011 PORSCHE BOXSTER S wheel size

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Independence |
Design
Sometimes, spontaneity
takes years of work.
Design.Exterior.
We have redefined the Boxster in terms
of its performance, and defined how the
roadster of the future should look. In doing
so, we have once again succeeded in cre -
ating an icon of independence. Just like
its legendary predecessors, it is a Porsche
that continues to epitomise the feeling of
genuine freedom and advancement. The vertical contour of the headlights was
inherited from Porsche race cars of the
1960s and 1970s, but while the new

Boxster may be infused with the genes
of past generations, also it ushers in a
new and forward-looking design ethos.
It ushers in a new and forward-looking
design ethos. Large, imposing air intakes give the front

a powerful appearance.
The side contour promises thrilling perfor -
mance, while the long wheelbase and low,
raked windscreen are integral to forming
the stretched, wedge-shaped silhouette.
With the hood closed, this impression is
reinforced by the extremely sporting roofline. Large wheels, up to 20 inches in
size, make a st ylish addition to the clas
-
sic roadster. These emphasise the cars
wide track and help to achieve a com -
pletely new level of athletic performance.
The distinctive shoulder line gives further
emphasis to the wheels and, in combina -
tion with the side air intakes, to the mid-engine layout. Such features are

reminiscent of the 718 RS 60 Spyder,
a light weight mid-engined sports car

that achieved success in endurance racing
and hillclimbing championships alike.
Precise lines, which run elegantly across
the wings to the rear, make the new
Boxster unique among Porsche models. While its overall look is just as imposing,
its lines are more sharply defined than

on any Porsche we’ve seen before.

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Chassis
Wheels.
The standard wheels on the new Boxster
models have been enlarged by one inch
compared with those of the previous
models. Made from a light weight alloy, the
larger wheels reinforce the car’s imposing
presence and further improve sport y
performance. The new Boxster is equipped with 18-inch
wheels. Their minimalist five-spoke design
is sport y and elegant in equal measure.
Tyre sizes are 235/45 ZR 18 and 265/45
ZR 18 at the front and rear respectively.
The Boxster S has 19-inch wheels with
a dynamic dual-spoke design. The t yre
size at the front is 235/40 ZR 19 and
265/40 ZR 19 at the rear.
The larger rolling circumference improves
comfort and performance. At the same time, the rolling resistance of the new gen
-
eration of t yres has been reduced which,
in turn, helps to reduce fuel consumption.
Wheels up to 20 inches are available as an
option.
Tyre Pressure Monitoring (TPM).
Optional Tyre Pressure Monitoring (TPM)
sends warnings to the on-board comput -
er’s display screen in the event of low t yre
pressure. The 4.6-inch TFT screen in the
instrument cluster enables the driver to
check the pressure in all four t yres. The system updates quickly and accurately
after an engine start, t yre pressure cor
-
rection or wheel change – for increased
comfort and safet y.
1 18 - inch Boxster wheel
2 19 - inch Boxster S wheel

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Chassis
Another key advantage of PCCB is the
extremely low weight of the ceramic
brake discs, which are approximately
50 % lighter than standard discs of similar
design and size. As well as enhancing
performance and fuel economy, this represents a major reduction in unsprung
and rotating masses. The consequence

of this is bet ter road holding and increased
comfort, particularly on uneven roads,
as well as greater agilit y and improved
handling. Please note that circuit racing, trackday
use and other forms of performance

driving can significantly reduce the
service life of even the most durable
pads and discs. As with conventional
high-performance braking systems, we recommend that all brake compo
-
nents be professionally inspected and
replaced where necessary after every
track event.
Electric parking brake.
The electric parking brake, which can
be activated and deactivated manually,
is released automatically as you pull
away with your seat belt fastened. A hill
hold function is integrated as standard for the manual gearbox and for PDK.
It assists you in making a comfortable,
smooth and roll-free start on an incline.
Whenever you come to halt on an incline,
this is detected automatically and the
braking effect of the electric parking brake is supplemented by application

of the wheel brakes. As long as a gear
remains engaged, the brake pressure
is maintained at all four wheels. To pull
away, simply apply throttle (manual gearbox: apply throt tle and release the
clutch pedal). The wheel brakes are
released as soon as sufficient starting
torque is available and the parking brake
is released as the vehicle moves off.