Two engines will be available at launch: a 2.0 TFSI 230PS in conjunction with front-wheel-drive or quattro all-wheel-drive, and a 2.0 TDI 184PS exclusively with front-wheel-drive. A 310PS TTS version will follow, with first deliveries in March 2015.
There will be Sport and S line specification options. Highlights of both include the fully digital Audi virtual cockpit, MMI touch, xenon or LED headlights, Audi Music Interface, Audi drive select, Alcantara/leather sports seats, and ‘keyless go’.
The aluminium and steel hybrid construction helps to reduce the entry level model’s kerb weight by 50kg compared with the old model.
The efficiency-focused TT ultra combines 67.3mpg capability with a CO2 output of just 110g/km, yet it can also reach 62mph in 7.1 seconds and top out at 150mph.
The Audi virtual cockpit is based around a 12.3-inch, high resolution LCD display that completely fills the driver’s instrument binnacle and replaces the traditional analogue dials. Its brilliantly sharp images are courtesy of a powerful Tegra 30 graphics processor from Nvidia’s Tegra 3 series.
Drivers can choose between two display modes. In the classic view, the speedometer and rev counter are in the foreground; in “infotainment” mode, the virtual instruments are smaller. The space that becomes free as a result provides ample room for other functions, such as the navigation map. At the lower edge of the Audi virtual cockpit, the displays for outside temperature, time and mileage are permanently visible. Warning or information symbols are also displayed there.
Audi TT virtual dash in “infotainment” mode
Interior technology highlights from the equipment list for Sport models also include the Multi Media Interface with the MMI touch pad for fingertip data entry, navigation preparation, Audi Music Interface and Bluetooth connectivity, the Audi drive select adaptive dynamics system and keyless go. Complementary comforts also include Alcantara and leather combination upholstery for the standard sports seats and manual air conditioning with controls integrated into the air vents in another break with convention. Outside the cabin, 18-inch 10-spoke alloy wheels, xenon headlamps with LED daytime running lights and a speed-dependent active rear spoiler all also feature as standard.
LED headlights come as standard for S line models
The S line specification is the most comprehensive and the most performance-oriented in the initial TT line-up. It adds larger 19-inch alloy wheels with a five-arm star design, all-weather LED headlights and LED tail lights flanked by dynamic rear indicators with a directional sweeping function and S line body styling. It also offers particularly committed drivers the no cost option to swap to tauter S line sports suspension bringing a 10mm reduction in ride height.
From the options list, even more of the remarkable Audi virtual cockpit’s potential can be unlocked by the Technology Package, which includes hard disk-based navigation mapping that can completely fill the 12.3-inch TFT monitor, and also beams the Internet to the car via Audi connect.
Quirky heater controls incorporated in the air vents
This brings features such as Google Maps, Google Street View, Audi traffic information online, price-graded refuelling locations in the vicinity and the latest news, flight and train information to streamline every journey. It also adds Audi music stream and access to social media services such as Facebook and Twitter. For sound, a 680W twelve-speaker Bang & Olufsen audio system can be specified in addition.
Outside, matrix LED headlights are optional. Each features 12 separate LED bulbs which dim individually when sensors detect oncoming or following traffic to automatically divert light around obstacles without the need to deactivate the high beam setting.
At 4.18 metres long, the Coupé is almost exactly the same length as its predecessor, though its wheelbase has grown by 37mm to 2505mm, making for especially short overhangs. It is 1832mm wide, and has the same height as the previous model at 1353mm. As a 2+2 seater, it is a sports car that is suitable for everyday use, with a load area capacity of 305 litres – 13 litres more than before – which can be increased to 712 litres by folding the rear seat backrests forwards.
The car is built using Audi’s Space Frame composite construction, which has been carried over and further evolved for the all-new model. Blending steel with a high proportion of lightweight aluminium in areas such as the side sills and side sections, roof, bonnet, doors and hatch lid has helped the 2.0-litre TFSI model to tip the scales at 1230kg – 50kg less than its equivalent predecessor.
The 2.0 TFSI – one of two engine options available at launch – is EU6-compliant. The four-cylinder unit combines direct and indirect fuel injection, the Audi valvelift system (AVS) to control valve lift on the exhaust side, and thermal management, which uses a rotary valve module and an exhaust manifold integrated into the cylinder head.
In the TT this power unit is combined with either front-wheel-drive and a six-speed manual gearbox or quattro all-wheel-drive and a six-speed S-tronic twin-clutch transmission. Developing peak torque of 370Nm from 1600 to 4300rpm, it powers the front-wheel-driven version from 0 to 62mph in 6.0 seconds, and on up to a top speed of 155mph. Combined economy is a creditable 47.9mpg, delivered with CO2 output of 137g/km.
S-tronic with free-wheeling function
In the version with six-speed S-tronic transmission and quattro all-wheel drive, performance is even more brisk: the sprint from 0 to 62mph takes 5.3 seconds; top speed is 155mph; in this version combined economy tops out at 44.1mpg with CO2 emissions of 149g/km. The dual-clutch transmission shifts through the six gears without any noticeable interruption in traction, and in manual mode it can be controlled by paddles on the steering wheel. When the Audi drive select system is set to its ‘efficiency’ mode, the S-tronic transmission decouples and ‘free-wheels’ each time the driver takes his or her foot off the throttle pedal.
The second engine option – the 2.0 TDI – powers the exclusively front-wheel-driven and six-speed manual-equipped ultra model. It features two balancer shafts in the crankcase, adjustable camshafts and a common rail injection system delivering maximum pressure of 2000 bar.
Helped by a torque peak of 380Nm it accelerates from 0 to 62mph in 7.1 seconds and reaches a top speed of 150mph. Over the NEDC rolling road fuel economy test it returns 67.3mpg, which translates into CO2 emissions of 110g/km, a new record low in the sports car world.
The front suspension uses the MacPherson system, and integrates aluminium components which reduce the unsprung mass. The four-link rear suspension processes longitudinal and transverse forces separately.
A progressive steering system is fitted as standard to all versions – its rack is set up in such a way that the ratio becomes more direct as the steering wheel is turned, enabling the TT to be steered precisely with little movement of the steering wheel in urban traffic and on winding country roads. The electromechanically driven steering adapts its assistance to speed and forms the basis for the Audi active lane assist system – which is standard for the TT 2.0 TFSI – and for the various park assist options.
Customisation of settings
The degree of steering assistance is one of the elements that can be controlled via the standard Audi drive select adaptive driving system. Offering Comfort, Dynamic, Efficiency, Individual and Auto modes, Audi drive select can also influence the operating parameters of the engine, the S tronic transmission and, when Efficiency mode is selected, the operation of the air conditioning and start-stop system.
Quattro permanent all-wheel drive delivers additional high speed composure and traction in the new TT, but the multi-plate clutch-based system has evolved. A newly designed hydraulic pump reduces weight by around 1.5 kg compared with the previous model, and the software that determines the level of torque distribution between the front and rear axles has been completely redeveloped. The control system continuously senses the driving conditions and the driver’s wishes and adjusts torque distribution accordingly in real time.
Networking quattro drive with the standard Audi drive select system has given the driver greater control over the operating parameters of the all-wheel-drive system. In “auto” mode, optimum traction and balanced driving dynamics are given priority. In “dynamic” mode, torque is distributed to the rear axle earlier and to a higher degree. And in another new departure for the new TT, when the “efficiency” mode is selected the system can precisely determine driving conditions and driver type and can temporarily shut down the quattro system if conditions suit this. In this operating state, the intelligent software monitors the driving situation and can reactivate all-wheel drive as soon as it is required again.
Electronic stabilisation control (ESC) is fitted to all versions. The system can also be switched off either partly or completely. When negotiating bends, it redistributes torque from the inside front wheel to the outside front wheel (front-wheel drive) or, on quattro models, to the rear wheels, if required. Thanks to the difference in propulsive forces, turn-in to corners is very easy, which is helpful for the driver. In this way, bends can be navigated with great precision and neutrality. ESC also offers a Sport mode which supports more committed driving, facilitating steering and control at high speeds.
Braking is by discs at both ends, ventilated at the front. Disc diameters are up to 338mm depending on the model. A button-operated electromechanical parking brake acting on the rear wheels is another new TT feature which is standard across the board.
A portfolio of driver assistance options
To minimise stress in everyday driving, a portfolio of advanced electronic aids is also available for the new TT. Audi side assist uses rear-mounted radar sensors to help drivers change lane more safely; camera-based traffic sign recognition can alert the driver to speed limits even when they have been temporarily imposed; the park assist system with display of surroundings independently guides the car into suitable spaces; and the Audi pre sense basic safety system takes protective action such as closing the windows and tensioning the seatbelts if sensors detect an impending collision.
And finally, Audi active lane assist helps the driver if required by steadily correcting steering or warning if there is a danger of unintentionally drifting out of lane – this feature is standard for the 2.0 TFSI model and optional for the 2.0 TDI ultra.