Audi has announced its plan to remake the sports cars, the S6 and S6 Avant, which are both for daily use and are very practical. Audi will use a new engine -- a four-liter, twin-turbo V8 – that offers sufficient power but with low fuel consumption. The 309 kW (420 hp) version of the new 4.0 TFSI will be used by the S6 and S6 Avant.
The twin-turbo V8 offers a constant 550 Nm (405.66 lb-ft) of torque from 1,400 to 5,300 rpm. As a result, the S6 can accelerate from zero to 100 km/h (62.14 mph) in 4.8 seconds and the S6 Avant can accomplish this in 4.9 seconds. These two models have an electronically limited top speed of 250 km/h (155.34 mph). The use of the 4.0 TFSI means that Audi's downsizing strategy has been brought to the high-performance class.
The 4.0 TFSI is sportier than the 5.2-liter V10 used in the previous model. Its fuel consumption is also lower by up to 25%. In the S6, it has an average fuel consumption of only 9.7 liters per 100 km (24.25 US mpg). In the S6 Avant, it is rated at 9.8 liters (24.0 US mpg). The impressive fuel efficiency is attributed to the recuperation and start-stop systems, together with the new "cylinder on demand" cylinder management system.
The Active Noise Cancellation system (ANC) runs when the V8 deactivates four cylinders under part load. The cabin’s noise is recorded by four microphones. A computer analyzes this noise. If it finds intrusive sound elements, it gives out an antiphase sound from the speakers of the sound system. When this sound combines with the intrusive sound, the noise is mostly canceled out.
Independent of this, there are active, electronically controlled engine bearings that use targeted counterpulses to attenuate low-frequency vibrations. The engine becomes smoother and more sonorous with the use of a sound actuator, flaps in the exhaust system, the engine shroud and a newly developed two-mass flywheel with a centrifugal force pendulum in the seven-speed S tronic.
In terms of power transmission, the S6 and S6 Avant could extend Audi's Vorsprung durch Technik further. It uses a fast-shifting, seven-speed S tronic transmission. The quattro permanent all-wheel drive system uses the self-locking center differential and torque vectoring. Consumers may opt for the quattro with the optional sport differential, which dynamically disseminates the power between the rear wheels.
Both the S6 and S6 Avant, as standard, feature adaptive air suspension sport that comes with variable damping. Able to lower the body by around 10 mm (0.39 inches), this adaptive air suspension sport allows for very precise handling sans any compromise in comfort. As standard, the S6 and S6 Avant ride on cast aluminum wheels (8.5 J x 19) that come with a five parallel-spoke design and that are wrapped in 255/40-series tires.
Customers may also avail of any of the seven 19- or 20-inch optional wheels, four of which are offered by quattro GmbH. One highlight would be the 20-inch titanium-look wheels featuring a five-arm rotor design. Moreover, both models feature -- on the front and rear -- internally ventilated dynamic disc brakes, featuring matt black calipers with S6 logos. Customers may also avail of the optional carbon fiber-ceramic discs.
Both models also feature, as standard, Audi’s drive select driving dynamics system that could modify the attributes of the gas pedal and the characteristic of the adaptive air suspension, as well as the shift points of the S tronic and the servo boost of the electromechanical steering. These systems could be adjusted in any of the five available modes. In addition, customers may choose to integrate the optional sport differential and the dynamic steering into the system.