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The New Golf GTD – World Premiere in Leipzig - 5.3 liter fuel economy and 222 km/h redefine the idea
of sportiness
New Golf GTD with 170-PS TDI: Advance sales begin early May
GTD and new GTI are conceptual soulmates
Wolfsburg /Leipzig, March 2009. After the Polo, the BlueMotion offensive
and the Golf GTI, Volkswagen is pulling the next arrow out of its
quiver: this time it is the Golf GTD. It is extremely fuel efficient yet
exceedingly sporty, and it is debuting as a world premiere at the Auto
Mobil International in Leipzig (March 28 to April 05). The GTD code
letters carry on a tradition: the first Golf GTD appeared back in 1982
– it was the GTI among diesels. Now Volkswagen has perfected the various
aspects of sportiness. The new Golf GTD with its 125 kW / 170 PS is aimed
at all diesel fans who value a maximum in dynamic per formance. This
is where the GTD shows a clear affinity to the new GTI (155 kW / 210 PS).
While the GTI is in its own league with an efficient turbo gasoline
engine that offers the same performance as far more expensive sports
cars, the Golf GTD is making its appearance with phenomenal fuel
economy. Every 100 kilometers, just 5.3 liters of fuel flow through the
piezo injection valves of the common rail engine that can hardly be
pegged as a diesel. That is equivalent to CO2 emissions of just 139 g/km.
This contrasts with a top speed of 222 km/h and 8.1 seconds for the
sprint to 100 km/h.
Range of about 1,000 kilometer
As on the GTI, the GTD’s 6-speed manual transmission may be swapped
out for an optional 6-speed DSG – which in the eyes of many experts
is the most efficient automatic of our times. The Golf GTD with DSG
reaches a top speed of 220 km/h; it accelerates to 100 km/h in 8.1 seconds
and consumes 5.6 liters diesel on average (147 g/km CO2). These low
fuel consumption values take both GTD variants to distances of about
1,000 kilometers on one tank of fuel (55 liters).
The GTD equipped with standard sport chassis and 17-inch alloy wheels
(“Seattle” type) bears a close relationship to the GTI, in its highly
agile handling properties as well as in its parallels in appearance and
features.
GTD exterior
The exterior clearly indicates that this is the sportiest Golf with a diesel
engine. Take the front end, for example: the bumper, radiator grille and
headlights are a 1:1 match with the GTI. However, the red horizontal
stripes in the radiator grille are styled in chrome on the GTD. At the
rear, the turbo-diesel sports a modified diffuser. Even though no GTD
emblem comes with the car purchase, the diesel version of the Golf
can be recognized by its dual chrome tailpipes on the left side of the
diffuser (the GTI has one tailpipe on the left and one on the right).
GTD sound
Sound – sporty sound – has not traditionally been a particular strength
of diesel engines. However, the GTD’s new common rail engine is
different. Since it no longer has a superimposed “hammering” sound
that was previously typical of diesels, engineers were able to fine tune
its acoustics for the first time. This is accomplished by a special sound
generator, which outputs a sonorous tone, especially in the lower
engine speed range. The electromagnetic sound generator evaluates
engine speed, momentary power demand and vehicle speed data
obtained via the car’s CAN bus and tunes the engine sound that can be
heard in the interior.
GTD interior
Volkswagen’s GT philosophy is also reflected in the interior. It ex presses
itself in standard high-end sport seats, a 3-spoke leather steering wheel
whose curvature flattens at the bottom (GTD signature in the center
chrome badge), leather parking brake lever and leather gearshift boot
with stitching in contrasting color. However, unlike in the GTI the color
is not red but light gray. The same applies to the sport seats in “Jacky”
pattern: The color chosen for the flat-felled seams are an elegant light
gray (“Art Grey”) instead of red (“Flash Red”). The seats themselves are
styled in a “Black-White” color combination.
GTD safety and convenience
Other standard features of the Golf GTD include details such as a black
roofliner and black roof pillar trim, special interior accents, seven
airbags including knee airbag on the driver’s side, automatic climate
control (“Climatronic”), front fog lights with chrome framing, daytime
running lights, ESP, a winter package (with heated windshield washer
nozzles, heated front seatsseats, headlight cleaning system and low
washer fluid indicator light) and the RCD 210 radio system. Nonetheless,
the most important component of standard GTD equipment
is still the Common Rail TDI with 170 PS being used in the Golf for the
first time.
TDI technology in detail
The 1,968 cm3 displacement engine is from a new TDI generation.
It delivers its maximum power at 4,200 rpm. The engine – as sporty as
it is fuel efficient – develops its 350 Newton-meter maximum torque
between 1,750 and 2,500 rpm. Its specific torque is 177.8 Newton- meter
per liter engine displacement. The upshot is that in practically any
driving situation, the sixteen-valve four-cylinder engine offers power
equivalent to that of a six-cylinder sports car engine.
About the technology: Fuel induction is handled by a common rail
system. Fuel injection pressures of up to 1,800 bar and special eighthole
injection nozzles achieve exceptionally fine atomization of the
diesel fuel. The eight-hole injection nozzles are driven by what are
known as piezo in-line injectors. In this process, electrically controlled
piezo crystals – boosted by hydraulics – initiate injection in fractions
of a second. Compared to conventional solenoid valves, piezo technology
enables more flexible injection processes with smaller and more
precisely metered quantities of fuel. The results are a very quiet and
pleasantly soft running engine, exceptionally quick response and the
excellent fuel economy and emissions values already mentioned.
Another feature having a positive effect on the car’s acoustics is the
maintenance-free toothed timing belt for the camshaft. The conversion
to common rail technology and many other acoustic measures, such as
a noise-damping film in the windshield, make the new Golf GTD one of
the quietest diesel models in its class. In addition, the GTD will fulfill
limits of the Euro-5 emissions standard. Advance sales of the Golf GTD
in Germany will already begin in early May. And the prospects for a
successful market launch look good. Because this sporty Volkswagen
fits in perfectly with our times.
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