For
the 2009 model year the maximum output of the 911 Carrera with
its 3.6-liter engine was raised by 20 horsepower to 345.
2009 also sees the introduction of Porsche-Doppelkupplung (PDK),
Porsche's double-clutch gearbox. The seven speed gearbox combines
the driving comfort of an automatic transmission with the gearshift
capacity of a sequential gearbox used in race cars. Since Porsche's
double-clutch also boasts an automatic gearshift function, it
replaces the former Porsche Tiptronic S automatic transmission
on both the Carrera and Carrera S. PDK improves acceleration
while reducing fuel consumption over the previous generation
of Tiptronic S equipped 911s through optimized and adaptive
gearshifts.
Porsche developed this gearshift principle for racing no less
than 25 years ago. It features two parallel clutches to eliminate
any interruption in power delivery and eliminates even the slightest
break between gears. Porsche factory drivers benefiting from
this technology were able to accelerate faster than their competitors
and keep both hands on the wheel while shifting gears, thus
avoiding even the slightest distraction. This pioneering achievement
from Porsche's racing efforts now gives the new 911 Carrera
and Carrera S even better performance.
The Carrera equipped with PDK covers 0-60 mph in 4.5 seconds.
There is also the option to combine PDK with Porsche's optional
Sport Chrono Plus including Launch Control. The result is high-speed
acceleration free of wheel spin from a standstill and a racing
shift pattern to further boost performance. The Carrera equipped
with the Sport Chrono Plus accelerates from 0 to 60 mph in 4.3
seconds.
The latest Porsche Communication Management system, PCM 3.0,
which includes a new touchscreen feature, is standard on all
2009 and on 911s. Along with this upgraded system, options such
as a hard disk drive navigation system, XM radio with XM NavTraffic
capability, Bluetooth connectivity, iPOD port, USB port, and
aux jack will be available
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