New Audi S models to feature new downsized 4.0L V8 with cylinder deactivation, energy recuperation and start-stop
Green Car Congress
AUGUST 31, 2011
This is a downsized platform from the prior 5.2L mpg US) in the S6 and 9.8 mpg US) in the S6 Avant. 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 also contribute to the sound and smoothness of the engine.
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