Audi will premiere a special Audi TT Ultra quattro Concept at this year’s GTI Wörthersee meet, an annual event that brings VW and Audi fans together mainly the GTI fans to showcase their tuning specifics with their cars, the BBS stand is the place to check out the craziest stanced wheels during this event!

In that regard, Audi takes this opportunity to present a special version of the Audi TT treated to quattro enhancements and in the home of quattro. The car now weighs only 1111kgs, thanks to the motto ‘the right amount of the right material in the right place’ where Audi utilized carbon-fiber reinforced polymer (CFRP) in the rear end, the center tunnel, in the B- pillars and in the roof and Magnesium components in the floor and as hinge reinforcement to maintain a low weight.

Its 2.0 TFSI engine develops 228 kW (310 hp) and 400 Nm of torque available between 1900-5000 rpm and will do a naught to 100km/h in just 4.2 seconds (which is 1.3s faster that the base TT) before the needles rests on the far end at 280km/h.

The car features large with the base of the rear wing being manufactured from milled aluminum, the wing is made of visible carbon. The car is painted in a crystal white with CFRP added on the hood, roof, sides and the trunk. CFRP is also utilized in the interior on the door trim. Drivers will enjoy bucket seats taken from an Audi R8 GT while his side mirrors are replaced by digital cameras that transmit images to his digital cockpit.

With the chassis being made of fiberglass reinforced carbon, the front brakes comes with ceramic discs with an aluminum fixed caliper while the exhaust system is made of titanium ends in a single central tailpipe. The spokes on the CRFP wheels are also made of high-strength aluminum. The weight is further balanced properly through the placement of the lithium-ion starter battery in the interior under the driver’s seat.

Other than the Audi TT Ultra quattro concept, there will be other cars showing at the 2013 GTI Wörthersee, they include; the Audi RS6 Avant powered by a twin turbo 4.0 TFSI V8 engine with 560HP, a 0-100km/h sprint time of 3.9 seconds and a top speed of 305km/h. There will be the all new Audi RS7 Sportback with a twin turbo 4.0 TFSI developing 560HP too. The Audi RS5 will be there too with a 4.2 TFSI developing 450HP and a 0-100km/h sprint of 4.9 seconds.

Also at the Audi stand will be the Audi RS Q3 with a 2.5 TSFI developing 310HP and the first of the Q family to get RS treatment, then there will be the Audi S3 that made its debut a few weeks ago, powered by a 2.0 TFSI and then the Audi R8 V10 Plus developing 550HP and a 0-100km/h time of 3.5 seconds when mated to an S Tronic gearbox.

Race cars showing will include the Audi R18 e-tron quattro that has so far won many titles under the LMP1 category in the Le Mans series, including this year’s 12 Hours of Sebring and 6 Hours of Silverstone. There will be 8 Audi RS 5 DTM race cars showing too and a special guest at the stand will be the Ducati Superbike 1199 Panigale R. The event will take place from May 8 to 11.

· TT ultra quattro concept destined for the Worthersee festival sheds 300kg (compared with closest equivalent production model) and benefits from a power boost for its 2.0-litre TFSI engine

· 310PS, 400Nm between 1,900rpm and 5,000rpm

· 1,111kg weight yields 279PS per ton, 0-62mph in 4.2 seconds, 173mph top speed

· Extensive use of Carbon Fibre-Reinforced Polymer (CFRP), Fibreglass-Reinforced Polymer (FRP) and magnesium reduces bodyshell weight by 100kg

Audi engineers are waging war on excess weight, and their latest victory is a TT 2.0 TFSI Coupe which has shed an incredible 300kg and gained a power upgrade to 310PS, giving it a 4.2-second 0-62mph sprint time and a top speed of over 170mph.

The TT ultra quattro concept is, as its name suggests, essentially a study developed for next month‘s annual gathering of Audi enthusiasts in Wörthersee, Germany, but it demonstrates how an intelligent mix of materials can bring about considerable weight savings even in existing series-production models. Work on the deployment of these materials could conceivably inform the development of future low-volume Audi model series.

The showcar tips the scales at a lean 1,111kg, an impressive achievement considering it combines its potent petrol engine with quattro all-wheel-drive. With 310PS and 400Nm of torque to propel this pared back mass via a six-speed transmission, the result is a highly impressive power-to-weight ratio of 279PS per ton, a blistering 4.2-second 0-62mph acceleration time and a top speed of 173mph.

The four-cylinder engine raises its game thanks to modifications to the crankcase, the crankshaft, the balancer shafts, the flywheel, the sump, the bolts and certain ancillary units that help to reduce the unit’s weight by 25 kilograms.

No detail was too small to escape scrutiny during the optimisation process that culminated in the TT ultra quattro concept. With its innovative hybrid body shell the fully fledged production TT already boasts a low body weight of 206 kilograms (excluding detachable body parts amounting to 98 kilograms) which bears testament to Audi engineers‘ desire to account for every last gram.
The concept’s body structure sheds another 43 kilograms, and with the help of optimised detachable body parts achieves a total weight saving of 100 kilograms.
The use of carbon fibre-reinforced polymer (CFRP) in the rear end, the centre tunnel, the B-pillars and the roof contributes to this significant saving, as do magnesium components in the floor and in the hinge reinforcements.
The front brakes with their ceramic discs and aluminium fixed calipers also make a contribution, and there are savings to be found in the titanium exhaust system with its single centrally mounted tailpipe and the CFRP wheels with their high-strength aluminium spokes, which shave off a particularly impressive 20 kilograms.

Fibreglass-Reinforced Polymer (FRP) springs
Fibreglass-reinforced polymer (FRP) also replaces more conventional steel for the coil springs in the suspension, helping to further reduce unsprung masses. The core of the all-new springs consists of long glass fibres twisted together and impregnated with epoxy resin. A machine wraps additional fibres around this core, which is only a few millimetres 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 per cent while still permitting good operating characteristics.
To further hone the nimble handling which is already a TT trademark, the developers have also concentrated on distributing the remaining weight as effectively as possible by moving it to the centre of the car wherever it was practical to do so. 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 just under four kilograms (8.82 lb).

300kg total weight saving
Overall, these lightweight construction measures leave the concept car 300 kilograms lighter than the comparable series-production car, helping to minimise the inertial mass that the TFSI engine has to contend with during acceleration.
The exceptional calibre of the TT ultra quattro concept is reflected in its even more emphatic styling, the focal point of which is the large spoiler which gives a nod to its motorsport genes. The base of the rear wing is manufactured as a supporting component from milled aluminium, while the wing itself is made of visible carbon fibre.
The concept car is painted in the special colour crystal white, which is complemented by CFRP elements in the roof, the flanks and the tailgate. In the interior the same material also adorns the door trim, the centre console and the cross-bracing that replaces the rear seat bench. The standard front seats are also replaced by fibreglass-reinforced polymer (FRP) bucket seats from the R8 GT which help to reduce the all-up weight by a further 22 kilograms.
There are no compromises on equipment behind the headline-grabbing figures – air conditioning, electric window controls and an electromechanical parking brake are all included, and there are even innovations such as compact cameras in the doors which replace the exterior mirrors and transfer images directly into the digital cockpit.