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Audi TT Quattro Sport Concept



 
 
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Old March 5th 14, 06:43 AM posted to alt.autos.audi
MummyChunk
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Posts: 174
Default Audi TT Quattro Sport Concept

There's little doubt that the new Audi TTS and its 310-horsepower,
2.0-liter, turbocharged four-cylinder will be very quick when released
to the general public.


From AB




The Audi TT quattro sport concept show car
Four-cylinder 2.0 TFSI engine with 420 hp
Impressive 210 hp per liter of displacement
Prof. Dr. Ulrich Hackenberg: "An extreme driving machine for the
motorsports enthusiasts among our customers"

Audi to present a truly special show car at the Geneva Motor Show. The
Audi TT quattro sport concept embodies the dynamic potential of the
new Audi TT in its purest form. Its two-liter TFSI supplies 309 kW
(420 hp), which the car puts on the road via the quattro all-wheel
drive.

"With our Audi TT quattro sport concept show car, we wanted to
demonstrate what the new TT's technology can do if you take it a step
further," explains Prof. Dr. Ulrich Hackenberg, Board Member for
Technical Development. "This car is designed for racing – an
extreme driving machine for the motorsports enthusiasts among our
customers."

Powertrain

The engine in the Audi TT quattro sport concept makes a powerful
statement. The 2.0 TFSI has a power output of 309 kW (420 hp) at 6,700
rpm – a new benchmark in the two-liter category. Its specific output
is 155 kW (210 hp) per liter of displacement – that's more than even
2001's victorious Le Mans R18 racing car, which was the first time
Audi combined turbocharging with FSI direct gasoline injection. The
four-cylinder engine has 450 Nm of torque (331.90 lb-ft) available in
the engine speed range from 2,400 to 6,300 rpm. with over 300 Nm
(221.27 lb-ft) already available at only 1,900 revs.

At a curb weight of 1,344 kilograms ([2,963.01 lb] without driver),
the Audi TT quattro sport concept is an athlete in peak condition.
Each hp supplied by the two-liter TFSI, which itself weighs under 150
kilograms (330.69 lb), needs to shift less than 3.2 kilograms (7.05
lb). The four-cylinder engine catapults the show car from 0 to 100
km/h (62.14 mph) in just 3.7 seconds.

Head of Powertrain Development Dr. Stefan Knirsch: "This
high-performance power unit is an impressive demonstration of the
power reserves available in our EA888 engine range. This power unit
has received numerous awards all over the world and it already lives
up to its claim in many Audi sporty models. In the TT quattro sport
concept, it demonstrates its full power potential. The thirty-five
years of experience we've gained in the field of turbocharging are
manifested in this engine's unique combination of maximum performance,
dynamism, and fuel efficiency."

The high-performance engine is once again based on the successful
EA888 technologies such as the Audi valvelift system (AVS) variable
valve timing, dual camshaft adjustment, and dual injection system (FSI
plus MPI). A wide range of modifications are featured, including
special aluminum pistons with integrated cooling channels and an
ultra-high-strength forged steel crankshaft.

The cylinder head is a systematic further development tailored to the
higher loads and increased gas throughput. To accommodate the higher
output, the EA888's familiar, highly compact thin-wall cylinder
crankcase is here made of a high-strength cast alloy. The also newly
developed exhaust-gas turbocharger features optimized mixed-flow
technology and produces up to 1.8 bar of charge pressure.

When driving, the four-cylinder unit's pronouncedly sporty character
is breathtaking. The turbocharged direct-injection engine responds
immediately to the throttle and revs eagerly right up to the fuel
cut-off at 7,200 rpm.

The 2.0 TFSI transfers its torque to a compact, three-shaft S tronic.
The dual-clutch transmission shifts gears in split-seconds, adding its
share to the show car's impressive acceleration.

The permanent quattro all-wheel drive delivers the power to the road.
For optimum weight distribution, the hydraulically actuated,
electronically controlled multi-disk clutch is located on the rear
axle. The quattro drive actively controls distribution of the drive
torque between the axles in milliseconds, thus adding to the car's
dynamic handling.

Chassis

With its cutting-edge chassis – McPherson wheel suspension with
aluminum components at the front and a four-link layout at the rear –
the Audi TT quattro sport concept offers sharp, precise race car
handling. The stiff setup brings the body closer to the road when
compared with the series-production TT. 54 percent of the weight rests
on the front axle, 46 percent on the rear. ESC electronic
stabilization control, which can be partially or fully deactivated,
complements the suspension's sporty character.

When cornering, wheel-selective torque control kicks in. If necessary,
drive torque is transferred from the wheels on the inside of the bend
to those on the outside. Thanks to the distribution of torque, the car
turns very slightly into the corner, helping the driver. This allows
for precise and neutral cornering and the TT greatly increases its
dynamism and stability.

Body

A significant part in the Audi TT quattro sport concept's lightweight
design is played by the body, which is based on the MQB modular
transverse matrix. Its hybrid concept represents the latest evolution
of the Audi Space Frame (ASF) and further lowers the car's center of
gravity compared with the second-generation series-production TT.

The front end is made of steel. The passenger compartment floor
comprises high-strength, hot-shaped steel components which, thanks to
their extremely high strength, feature very low wall thicknesses and
thus weigh accordingly little. The compartment's structure, the entire
exterior skin, and the doors and lids are made of the classic Audi
semi-finished aluminum products cast node, extruded profile, and sheet
metal.

Exterior design

The flat Matrix LED headlights and the broad Singleframe grill
dominate the study's front end. The grill's striking frame displays
the quattro logo and holds the dark diamond-pattern grill.

Through their pronounced edges, the substantial air intakes – which
also feature diamond-pattern grills – appear almost like inserted
airboxes. They thus illustrate a key element in the new Audi TT's
design language: elements like the greenhouse and wheel arches create
the impression of being individual bodies, thus producing the typical
tension. The show car rests on 20-inch wheels with a central locking
mechanism and semi-slick tires.

A splitter made of carbon-fiber reinforced polymer (CFRP) stretches
toward the front to round off the front end at the bottom and increase
the downforce on the front axle.

The silhouette of the Audi TT quattro sport concept – which features a
paint finish entirely in Crystal White – is athletic and dynamic from
every angle. Typical for a TT, the wheel arches form the classic
semicircles. They extend 30 millimeters (1.18 in) further than on the
series-production car on every side, giving the car's stance on the
road a decidedly confident air. They are connected by powerfully
accentuated sill trims. Their lower segments are made of CFRP.
Together with the splitter and the rear diffuser, which stretch all
the way to the wheel arches, they form an aerodynamically effective
contour.

On the rear, the wide CFRP diffuser that extends beyond the vehicle
silhouette underlines the show car's racing character. Delineated by
vertical edges, the diffuser surrounds two large, fully circular
tailpipes that are located further outward than on the
series-production car; large air outlets are positioned on the sides
beneath the taillights. A large, fixed wing increases the downforce on
the rear of the Audi TT quattro sport concept.

Interior styling

The show car interior has been reduced to the essentials, doing away
with numerous components that are dispensable on the race circuit.

The door panels have been stripped of armrests and speakers – the
interior is characterized by Alcantara. A dominant diagonal strip of
Alcantara acts as a door pull handle, the door openers feature a
filigree design. Low-set racing buckets serve as seats, featuring
black four-point seat belts with white accentuating stripes. The
luggage compartment offers space for two racing helmets.

The same as in the series-production TT, the controls are designed
purely for the driver. The Audi TT quattro sport concept's pilot has
his hands on a compact steering wheel with a pronounced rim that
flattens out at the bottom. The steering wheel's spokes house the red
start/stop button alongside the keys and rotary buttons for operating
the Audi virtual cockpit. Depending on what the driver sets, the fully
digital instrument cluster's 12.3-inch display shows different views.

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