Image credits: © Audi.
Press Release
Audi is turning the Wörthersee 2013 into the “Home of quattro”. At
the large gathering from May 8 to 11 in Reifnitz (Kärnten), the premium
brand will unveil the Audi TT ultra quattro concept – which combines
minimal weight and maximum sportiness. A wide range of high-performance
cars will also give fans another taste of sportiness. In addition to the
legendary Sport quattro S1, the very latest RS models and thoroughbred
race cars are also on show. The Audi R18 e-tron quattro, which was the
first hybrid car to win the 24 Hours of Le Mans last year, will also be
part of the action at the lakeside.
At the start of May every year, the Wörthersee is the place to be for
every car and Audi aficionado. Audi will therefore be showcasing a
special highlight in 2013: the Audi TT ultra quattro concept. The
showcar combines a lean 1,111 kilograms (2,449.34 lb) total weight with a
2.0 TFSI engine, whose 228 kW (310 hp) and 400 Nm effortlessly propel
the coupé. From a standstill the TT ultra quattro concept is catapulted
in 4.2 seconds to 100 km/h (62.14 mph). Its power-to-weight ratio of 3.6
kg/hp is on a par with thoroughbred super sports cars. And it is also
worthwhile looking at the detail, not least because the concept car pays
homage to automotive lightweight construction.
Even the current series-production car with a body weight of just 206
kilograms (454.15 lb) plus 98 kilograms (216.05 lb) for the detachable
body parts is testimony to the outstanding lightweight construction
expertise of Audi. The engineers from Ingolstadt and Neckarsulm
concertedly fine-tuned the Audi Space Frame (ASF) in the current TT
generation to come up with the body for the Wörthersee showcar, shedding
another 43 kilograms (94.80 lb) from the body structure. Together with
the optimized detachable body parts, the result is a weight saving of
100 kilograms (220.46 lb).
Audi has adopted an intelligent mix of materials according to the
motto: the right amount of the right material in the right place. The
Audi TT ultra quattro concept uses carbon-fiber reinforced polymer
(CFRP) in the rear end, the center tunnel, in the B-pillars and in the
roof. Magnesium components in the floor and as hinge reinforcement
reduce weight even further.
The combination of lightness and sportiness is also reflected in the
looks. Compared with the series-production model, the Audi designers
have substantially honed the showcar’s contours even further. With its
large spoilers, the TT ultra quattro concept proudly displays its
motorsport genes. The base of the rear wing is manufactured as a
supporting component from milled aluminum, while the wing, as a
functional element, is made of visible carbon.
The concept car is painted in the special color crystal white. The
CFRP used on the exterior adds a striking touch on the hood, the roof,
the sides and the trunk. In the interior the same material also adorns
the door trim, the center console and the cross-bracing that replaces
the rear seat bench. The developers have also fitted the bucket seats
from the R8 GT to the concept study; their chassis alone, made out of
fiberglass-reinforced plastic (FRP), reduce weight by 22 kilograms
(48.50 lb). The driver does not have to make any compromises when it
comes to equipment and appointments: air conditioning, electric window
controls and an electromechanical parking brake come as standard on the
TT ultra quattro concept. A veritable highlight: the exterior mirrors
are replaced by compact cameras which transfer the images directly into
the digital cockpit.
To reverse the weight spiral, the Audi ultra lightweight construction
concept is applied to all elements in the automobile. The developers
have further optimized each component. The front brakes feature ceramic
discs with an aluminum fixed caliper, the exhaust system made out of
titanium ends in a single central tailpipe. The wheels also reduce
weight by 20 kilograms (44.09 lb). Spokes made out of high-strength
aluminum are bolted directly to the CFRP wheel.
Every gram counts, particularly on the suspension. Here the unsprung
masses have been reduced, thus improving comfort and handling. On the TT
ultra quattro concept the coil springs are not made out of steel but
from fiberglass-reinforced plastic (FRP). The core of the all-new
springs consists of long glass fibers twisted together and impregnated
with epoxy resin. A machine wraps additional fibers around this core,
which is only a few millimeters in diameter, at alternating angles of
plus and minus 45 degrees to the longitudinal axis. These layers support
each other and act in either compression or tension. The use of FRP at
this point cuts weight by 40 percent while maintaining good
characteristics – 6 kilograms (13.23 lb) in relation to the car as a
whole.
To further hone the handling of the TT, the developers have taken
away weight from the ends of the car and moved it into the middle. The
lithium-ion starter battery, for instance, is located in the interior
under the driver’s seat. It is much smaller than a lead battery and
weighs as little as just under four kilograms (8.82 lb).
Overall, all these lightweight construction measures make the concept
car about 300 kilograms (661.39 lb) lighter than the comparable sporty
series-production model. All of which helps minimize the inertial mass
that the 228 kW (310 hp) 2.0-liter TFSI engine contends with during
acceleration. The modified high-end four-cylinder unit develops its
maximum torque of 400 Nm between 1,900 and 5,000 rpm, putting it on a
par with the power of the V8. Modifications to the crankcase, the
crankshaft, the balancer shafts, the flywheel, the oil sump, the bolts
and certain ancillary units that make the engine 25 kilograms (55.12 lb)
lighter have all helped get the engine into tip-top shape.
Thus the Audi TT ultra quattro concept offers the kind of driving
experience that automotive fans on the Wörthersee expect from a genuine
high-performance model. Like the “Ur-quattro” from 1980 and more than
five million series-production vehicles since, this year’s showcar is
also fitted with the quattro permanent all-wheel drive. Grip is
therefore always ensured despite the impressive performance. With its
six speed transmission, the TT ultra quattro concept is 1.3 seconds
faster than the series-production model when accelerating from 0 to 100
km/h (62.14 mph). The top speed is 280 km/h (173.98 mph).
The Audi showcar demonstrates the technical possibilities of an
intelligent mix of materials. In this way considerable weight savings
can even be achieved on an existing series-production model. Usage of
these technologies is conceivable for future small-batch series.
The Audi stand at the Wörthersee
With high performance, success and lightweight construction, Audi is
presenting at the Wörthersee in the “Home of quattro” not only the TT
ultra quattro concept but also four race cars and eight
series-production models.
The highlights include the new Audi RS 6 Avant. The high-performance
model from quattro GmbH offers more efficiency and greater performance
with reduced weight. Thanks to ultra lightweight construction, the RS 6
Avant weighs just under 100 kilograms (220.46 lb) less. The reduced
weight helps cut fuel consumption from 14.0 to 9.8 liters per 100
kilometers. With the V8 twin-turbocharged 4.0 TFSI developing 412 kW
(560 hp) the power-to-weight ratio of the RS 6 Avant is 3.4 kg/hp. The
same figure for the predecessor was 3.5 kg/hp, despite the V10 engine.
It accelerates from 0 to 100 km/h (62.14 mph) in just 3.9 seconds. If
the customer wishes, the top speed can be increased to 305 km/h (189.52
mph).
In addition to the RS 6 Avant, there is also the new RS 7 Sportback.
It embodies dynamism in its most stunning form. Its strong pulse also
comes courtesy of the twin-turbocharged 4.0 TFSI V8. The output of 412
kW (560 hp) is on tap between 5,700 and 6,600 rpm. A constant 750 Nm
(553.17 lb-ft) of torque are available between 1,750 and 5,500 rpm. In
addition to the rocket-like propulsion, the sound is an important
constituent of the driving experience: switchable flaps in the exhaust
system make the engine sound even fuller at the push of a button or
under strong acceleration. Audi also offers an optional sport exhaust
system.
The Audi RS 5 Cabriolet impresses as a four-seater with soft top in a
unique combination of elegance and power. Its 4.2 FSI, a high-revving
V8 engine, outputs 331 kW (450 hp). It accelerates the high-performance
sports car from 0 to 100 km/h (62.14 mph) in 4.9 seconds.
The Audi stand will also showcase the new Audi RS Q3 as the first RS
model in the successful Q family. It is the fourth model that quattro
GmbH will launch this year. An award-winning high-performance engine
lies under the hood of the RS Q3 in the guise of the 2.5 TFSI engine,
which boasts peak output of 228 kW (310 hp). Since 2010, an
international panel of automotive journalists has named the five
cylinder engine “International Engine of the Year” in its category three
years in a row.
In 2012, Audi completely revamped the R8 family. The new flagship
model, the R8 V10 plus, awaits fans. It develops 404 kW (550 hp) and has
a peak torque of 540 Nm (398.28 lb-ft) at 6,500 rpm. The R8 V10 plus
with the S tronic accelerates from 0 to 100 km/h (62.14 mph) in 3.5
seconds and only at 317 km/h (196.97 mph) does the rolling resistance
become too much for the forward momentum.
In a nutshell, quattro GmbH has stood for high-performance and
high-tech for 30 years: fascination quattro. With this anniversary, the
focus in on the rallies in the 80s through which the Audi quattro drive
has become the world’s most famous all-wheel drive system. Audi has
brought a key milestone of this history to the GTI gathering at the
Wörthersee: the Audi Sport quattro S1. It made its World Championship
debut in 1985 at the Argentine Rally. Walter Röhrl with co-driver
Christian Geistdörfer clinched the first overall victory in an S1 at the
San Remo Rally in Italy in October of the same year. The Sport quattro
S1 on show was used with Walter Röhrl and Christian Geistdörfer onboard
at the Monte Carlo Rally in January 1986.
The Audi S3 is another protagonist at the GTI gathering on the
Wörthersee. Its outstanding characteristics include everyday
suitability, impressive power, and groundbreaking efficiency. It manages
to pull off this feat thanks to the all-new 2.0 TFSI engine which
develops 300 hp and 380 Nm (280.27 lb-ft) of torque.
The DTM season gets underway on the Hockenheimring on May 5. Eight RS
5 DTM cars will be lining up on the starting grid for Audi this year.
Fans will be able to experience the race cars up close on the Audi stand
at the Wörthersee. “Motorsport is part of the Audi DNA and a test
laboratory for series production,” says Wolfgang Dürheimer, Board Member
for Technical Development at AUDI AG.
In 2012 the Audi R8 LMS ultra was the race car to beat. In four years
it has scooped 18 championships. Fans will also be able to see it in
Reifnitz.
Another race car, the victorious R18 e-tron quattro, sits alongside
the TT ultra quattro concept on the Audi stage. Last year it became the
first hybrid race car to win the legendary Le Mans 24-Hours and recently
clocked up another historic success for Audi at the 12-Hour Race in
Sebring.
Audi fans can look forward to another special attraction at the
Wörthersee: The Ducati Superbike 1199 Panigale R graces the stand as
special guest. Inspired by the race track, the new queen of Ducati’s
superbike family offers outstanding performance and cutting-edge
technology. In 2012 the sports motorcycle manufacturer Ducati Motor
Holding S.p.A. became a wholly-owned subsidiary of AUDI AG.
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