Audi equips S8 with biturbo eight-cylinder TFSI engine

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Audi has fitted its S8 with a biturbo V8 gasoline engine. Equipped with 48V hybrid technology, the high-performance eight-cylinder will generate 571ps and 800Nm of torque.

Iron-lined cylinder barrels in the aluminum crankcase reduce friction and actuated flaps in the exhaust system accentuate the sound of the V8. For the ultimate in comfort, sound intrusion that is less desirable is eliminated by active noise cancellation integrated into the sound system.

The mild hybrid system (MHEV) works continuously to reduce fuel consumption. A 48V belt alternator starter and the additional lithium-ion battery enable coasting with the engine switched off, fast restart and an extended start-stop range. Allowing fuel savings of up to 0.8l/100km during everyday driving.

The cylinder on demand system, which deactivates individual cylinders in low-load operating situations, also helps to moderate fuel consumption wherever possible.

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Sam joined the UKi Media & Events automotive team in 2017. Having started out as assistant editor for a number of titles including Engine + Powertrain Technology International, Automotive Testing Technology International and Professional Motorsport World, he was appointed editor of E+PTI in 2020. Sam produces content for both the magazine and website.

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