Specs:
Powerful, dynamic exterior design and overtly driver-oriented interior design, with a flair that combines sport with luxury
At launch, two high-performance V8 engines:
4.2 quattro: power output: 246 kW (335 bhp) at 6500 rpm; torque: 430 Nm at 3500 rpm. Top speed: 250 km/h. Acceleration from 0-100 km/h: 6.3 seconds
3.7 quattro: power output: 206 kW (280 bhp) at 6500 rpm; torque: 360 Nm at 3750 rpm. Top speed: 250 km/h. Acceleration from 0-100 km/h: 7.3 seconds
6-speed tiptronic with Dynamic Shift Program and Sport program
quattro permanent four-wheel drive
Aluminium running gear with 4-link front suspension and trapezoidal-link rear suspension
Adaptive air suspension with continuously variable damper settings. Choice of three modes for individual spring/damper characteristics produce optimum operating dynamics and maximum comfort; additional lift mode for improved ground clearance on uneven terrain
As an option: adaptive air suspension - sport, a sports suspension system again with three modes, for overtly sporty adjustment of the suspension to the driver's preferences, plus lift mode
New high-performance brake system with electromechanical parking brake
Automatic tyre pressure monitoring system
Newly developed ASF-type aluminium body now offering 60 percent better rigidity
Optimised safety technology with two-stage airbag activation for the driver and front passenger and the Audi SIDEGUARD head-level airbag system - as standard. New: active head restraints at the front
Adaptive light, an innovative form of lighting technology with cornering light
Adaptive cruise control, radar-assisted distance control
Integrated MMI Multi Media Interface operating concept with self-evident, consistent operating logic
Advanced key access and authorisation system
One-touch memory, driver-oriented personalisation

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I like the design very much. Much better then the 7 series or the S-class.