For ward thrust |
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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Porsche Stability Management (PSM).
Enhanced Porsche Stability Management
(PSM) is fit ted as standard. This system
automatically maintains stability even
at the limits of dynamic driving perfor -
mance. Sensors continuously monitor
the speed, yaw velocit y and lateral
acceleration of the car. Using this
information, PSM is able 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 in order to restore
stability. Under acceleration on wet or low-grip
road surfaces, PSM improves traction –
as well as agilit y and safet y – using the
automatic brake differential (ABD) and
anti-slip regulation (ASR). Integrated ABS
is designed to minimise braking distances.
If you prefer an ever sportier drive, PSM
can be switched off. For your safet y,
however, PSM remains set to intervene if
the vehicle is braked and ABS assistance
is required. ABS and ABD remain switched on at all times. Also included with PSM
are engine drag torque control (EDC),
precharging of the brake system and
brake assist. If you suddenly release the
accelerator pedal, PSM automatically
prepares for your next action: the braking
system is precharged so that the brake
pads are already in light contact with the
brake discs. Maximum braking power is therefore achieved much sooner. Brake
assist detects a panic braking situation
and generates the brake pressure
required for maximum deceleration.
For ward thrust
|
Chassis
