Marcel Fässler, André Lotterer and Benoît Tréluyer introduce the World to the new Audi S6,S7 and S8!
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Marcel Fässler, André Lotterer and Benoît Tréluyer introduce the World to the new Audi S6,S7 and S8!
Audi continues to increase the efficiency of its engines. The new 4.0 TFSI, a powerful V8 with twin turbochargers, is equipped with “cylinder on demand” technology. When operating at part load, four of its cylinders are deactivated. This reduces fuel consumption by an average of five percent. To complement this system there are two further technologies: Active noise control (ANC) and active engine mounts. They ensure that the car’s occupants do not hear or sense any disturbing noise or vibration even if the engine is operating in the four-cylinder mode.
Today Audi provided us with some engine porn for the new 4.0-litre V8 FSI engine.
[Source: Audi AG]
Audi will present its new S models for the first time at the 2011 Frankfurt Auto Show (IAA). These models are characterized by power combined with appropriately low fuel consumption. The engine down-sizing strategy of the brand with the four rings has reduced the fuel consumption of the S6 by as much as 25 percent whilst offering sportier driving performance.
The Audi S8
The Audi S8, which will be launched on the market in spring 2012, is the new head of the Audi S model family – a large, luxurious sedan of supreme power. The new 4.0 TFSI in the S8 generates no less than 382 kW (520 hp) and delivers a constant 650 Nm (479.42 lb-ft) of torque to the crankshaft between 1,700 and 5,500 rpm. The result is outstanding performance: The sprint from zero to 100 km/h (62.14 mph) takes just 4.2 seconds, and top speed is electronically capped at 250 km/h (155.34 mph).
This makes the fuel consumption of the sonorous and smooth twin-turbo V8 all the more amazing: It averages just 10.2 liters per 100 km (23.06 US mpg), much less than its competitors. The free-breathing, 5.2-liter V10 in the previous model consumed an average of 13.2 liters per 100 km (17.82 US mpg). Fuel consumption decreased by nearly 23 percent despite a 51 kW (70 hp) increase in output.
Behind the top value for the new Audi S8 are the combined technologies of the Audi modular efficiency platform, including the recuperation and start-stop systems. The newly developed “cylinder on demand” technology plays a particularly large role. Under part load, it deactivates four of the eight cylinders for an efficiency gain that is particularly pronounced at moderate highway speeds. A package of acoustic measures including the Active Noise Cancellation system suppresses possible intrusive noise and vibrations.
The eight-speed tiptronic in the S8 also unites sportiness and efficiency. It uses tall gears at low revs whenever possible, but downshifts quickly and comfortably when requested by the driver. The tiptronic delivers the power to a quattro drivetrain combining a self-locking center differential with the sport differential at the rear axle. During dynamic driving, the lion’s share of the power flows to the outside wheel to literally push the large sedan into the corner.
Continue reading ‘Audi S8 – World Premiere of Audi S Models at the IAA 2011′
