51
50
In ‘Sport ’ mode, for example, the suspen -
sion is set to a harder damper rating. On
uneven roads, PASM immediately switch -
es 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 select -
ed and the driver’s st yle becomes more
assertive, PASM switches to a harder
rating to increase driving stabilit y and
road safety.
Steering.
Our interpretation of efficiency is a sys -
tem that works only when it is needed,
and then does so in a particularly effec -
tive way. Whereas a conventional hydrauli -
cally assisted steering system draws
engine power continuously, the electric
motor of the electromechanical system
in the new Cayman models uses energy
only when you actually steer. As a result,
fuel consumption is reduced and the
absence of hydraulic fluid eliminates the need for servicing the system. These
t wo advantages are also beneficial to
the environment.
A variable steering ratio preserves the
precise and direct steering response
associated with the t ypical Porsche steer-
ing feel. This intelligent system filters
out unwanted shocks from the road and
actively assists steering inputs under
braking on road surfaces with varying
grip.
Available as an option, speed-sensitive
Power steering Plus facilitates manoeu -
vring and parking for even greater driving
comfort.
Drive |
Chassis
76 Safety and environment |
Environment
Fuel economy and recycling.
Intelligent lightweight construction is, and
always has been, a fundamental aspect of
the Porsche philosophy – for both techni -
cal and ecological reasons. This combina -
tion forms the basis for achieving low fuel
consumption values in conjunction with
high performance. On the technical side,
various components are made with a high
proportion of alu minium, magnesium, plas -
tics and super- high -strength sheet steel.
The materials used have been selected
for their abilit y to withstand load, yet they
are considerably lighter than conventional
steel. As a result, the bodyshell of the new
Cayman models has a light alloy content
of approximately 44 %.
On the ecological side, all materials used
are meticulously selected. We use only state-of-the-art components, with priority
given to products manufactured in a sus
-
tainable manner where possible. All syn -
thetic components are easily recyclable
and each material is labelled to facilitate
its separation for recycling. The reduction
in the number of plastic variants helps to
ensure more efficient recycling. Recycled
plastics are used where they meet our
exacting technical requirements.
In short, the new Cayman is around 95 %
recoverable.
In addition, Porsche uses a high proportion
of environmentally friendly water-based
paints. For us, environmental protection
does not begin with the vehicle manufac -
turing process. It starts at the planning
and development stage.
Fuel.
The new Cayman models are designed to
operate on fuels with an ethanol content of
up to 10 %. Ethanol has a positive impact
on the CO2 balance since the plants grown
for the production of this biofuel also
absorb CO
2 from the atmosphere. The
release of hydrocarbons from the fuel
system has been minimised thanks to the
active carbon filter and the multilayered
material from which the fuel tank is made.
Servicing.
Long service intervals offer clear advan -
tages. For you, they reduce costs and
save time. For the environment, they assist
in the sparing use of consumables and
replacement parts. For full details of ser -
vice intervals, please refer to the separate
price list.
For fuel consumption, CO
2 emissions and efficiency class, please refer to page 131.
