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Encounter – The Audi Technology Magazine 2/2015
Like a race car, the new Audi R8 generates downforce – in the case of the V10, this measures 140 kilograms at top speed, 100 of which are on the rear axle. A fixed rear spoiler works together with a large diffuser on the underbody. Two so-called venturi spoilers direct the air into them at high speed, virtually doubling the effect. Longitudinal fins in the diffuser channel the airflow so that it doesn’t rush into the center.
Around the front axle are two small diffusers that send the air through the wheel arches and thus serve to cool the brakes. Each one works with two airflow bodies and venturi spoilers. Beneath the front of the car and the occupant cell, the underbody is almost entirely smooth.