The interior The interior of the TT Roadster is noticeably larger too, offering extra headroom and elbow room. The width at shoulder height is now 1362 mm, an increase of 29 mm. Deep-set sports seats provide firm lateral support for both the driver and passenger. The standard-specification leather sports steering wheel features a flat-bottomed rim. The optional Impulse leather trim with its distinctive topstitching already attained cult status when it was offered for the outgoing model; it is one of four different leather trim packages. The 3.2 quattro is upholstered in a combined Alcantara/Leather trim as standard. The three circular air outlets and the dome shrouding the instrument cluster dials inject the cockpit with characteristic TT flair. As is to be expected of an Audi, the ergonomic concept is perfect and the workmanship of the very finest standard. The increase in the body's dimensions has also benefited luggage space, which has expanded from 210 to 250 litres in both the front-wheel-drive and the quattro variant. The drive train Like the TT Coupé, the new Roadster is available with a choice of two transverse-mounted petrol engines. Both generate high pulling power and impressive peak output, resulting in out-and-out sporty performance. The four-cylinder engine directs its power to the front wheels, while the V6 powers all four wheels based on the quattro principle offering dynamism and sure roadholding in equal measure. Apart from a sporty six-speed manual shift, both engines are also available in conjunction with the innovative S tronic dual-clutch gearbox for lightning-fast gear changes without any interruption in the power flow. The four-cylinder unit bearing the initials TFSI musters up 147 kW (200 bhp) and a constant 280 Nm of torque between 1,800 and 5,000 rpm from its capacity of 1,984 cc. The TFSI technology combines a turbocharger to optimum effect with Audi's own petrol direct injection, which produces a distinct improvement in combustion efficiency. In both 2005 and 2006, the responsive and extremely refined two-litre turbocharged FSI unit was voted "Engine of the Year" by an international jury of experts. When fitted with the S tronic shift, the Audi TT Roadster 2.0 TFSI accelerates from standstill to 100 km/h in just 6.5 seconds and reaches a top speed of 237 km/h. It burns an average of just 7.8 litres of fuel for every 100 km. The V6 unit with its capacity of 3,189 cc delivers 184 kW (250 bhp) and a peak torque of 320 Nm which is on tap between 2,500 and 3,000 rpm. The sonorous, ultra-compact long-stroke engine features two continuously adjustable camshafts. The TT Roadster 3.2 quattro sprints from 0 - 100 km/h in 5.9 seconds with the S tronic gearbox and can, if necessary, go on to reach a governed top speed of 250 km/h. It returns average fuel consumption figures of 9.5 l/100 km. The chassis The sporty chassis has undergone complete redevelopment for the new TT Roadster. Its chief features are the complex four-link rear suspension, wide track widths, elastokinematics that have been heavily reworked, plus large wheels. The 2.0 TFSI rides on 16-inch and the 3.2 quattro on 17-inch alloy wheels. The wheels may be specified with run-flat capabilities as an option. The front wheel suspension, which is linked to a separate subframe, has a McPherson construction that has been refined by the use of lightweight aluminium components. The electromechanical power-assisted steering combines a direct ratio with sensitive precision. The construction of the four-link rear suspension, which also operates using a subframe, separates the coil springs and the shock absorbers from one another. The longitudinal links – which have a relatively soft set-up for enhanced ride comfort – absorb the propulsive and braking forces, while the rigid connection of the three transverse links for each wheel allows them to direct the lateral forces into the bodyshell with great precision. The redeveloped electronic stabilisation program (ESP) has been optimised for a sporty driving style and to help produce the steering balance of the TT Roadster, which varies between neutral and slight understeer. If necessary, the brake assist system takes action to ensure that the four large disc brakes build up maximum braking power as fast as possible. The optional Audi magnetic ride adaptive damping system is a high-tech feature that is unique in the roadster segment. At the push of a button, drivers can choose between either an extra-comfortable or a decidedly dynamic suspension set-up. Circulating inside the shock absorber struts is a special fluid containing minute magnetic particles. Applying a voltage to this fluid alters its viscosity – and therefore the damping characteristics – within milliseconds. Pages: [1] [2] [3] [4]

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