2007 Audi TT

The chassis

The sport suspension on the new TT Coupe also helps to deliver top-class dynamics. This is thanks in part to its elaborate layout, as well as its 0.4 in. lower center of gravity. The Audi dynamic suspension layout has been redeveloped and retuned. The emphasis here has been placed on the wider track, the larger wheel cross-sections with diameters ranging from 16 to 19 inches and the extensive elastokinematic measures.

The front suspension is pivoted on an aluminium subframe. It has a wide track of 61.9 in. The steering comprises a rack-and-pinion assembly that supplies its electromechanical servo assistance as a function of road speed. The steering is characterised by direct transmission and a high degree of precision.

A new feature compared with the torsion-beam design of the predecessor is the four-link rear suspension with a track of 61.3 in. In this instance, the coil springs and shock absorbers are separate. The trailing links absorb the propulsive and braking forces. As an aid to ride comfort, their configuration is relatively soft.

The three wishbones per wheel, on the other hand, are connected rigidly in order to introduce the transverse forces into the body precisely.

The TT 2.0 T features 16-inch cast aluminium wheels, fitted with 225/55 R 16 tyres as standard. The 3.2 quattro features forged 17-inch lightweight alloy wheels, fitted with 245/45 R 17 tyres. All Audi TT models are fitted with newly developed disc brakes on every wheel. The new brake pads develop particularly high friction coefficients, thereby improving brake responsiveness and performance. The newly developed electronic stabilisation program is designed to maintain a dynamic driving style – it promotes the TT’s self-steering behaviour, which is in the range of neutral to slightly understeering. This sporty characteristic delivers thrilling agility, maximum driving fun and magnificent handling.

The high-tech damping system, Audi magnetic ride, is available as an option – an innovative technology that resolves the age-old conflict between comfort and driving dynamics. The shock absorber pistons on the TT do not contain conventional oil, but a magneto-rheological fluid in which microscopically small magnetic particles are enclosed. When a voltage is applied to them, they alter the damping characteristics within milliseconds. This adaptive system simultaneously maintains astonishingly high levels of ride comfort and thoroughly sporty dynamism with perfect roll stabilisation, according to the specific driving scenario and the preferences of the driver. The driver can choose between the basic programs "Normal" and "Sport" at a switch. None of the TT’s competitors offers a similarly advanced technological concept.

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