Because I'm pretty sure he has a big diameter stainless steel ducts with flaps and big fan in front of the dyno synced with the dyno so the faster the car goes the more flap is open and faster the fan is spinning.
This does simulates the real life conditions to some point as the air is pump under speed into front grill depending on the speed of the car.
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2006 D3 S8 5.2 V10
Ceramic Brakes, Bang&Olufsen, DTV, DAB, Rear Camera, BT, TPMS, Soft Close, Auto Boot, AMI , 4 Zone AC, Home Link, All Electric Blinds, Fingerprint, Ski Hatch, Black Extended Leather, Heated Sport Seats, Alacantra, Carbon Trim inc Aluminium Pack 2.
2015 A3 S line 1.4 TFSI - for the missus to keep her away from my car.
Standard S-line equipment, no extras.
2006 D3 A8 3.7 V8 - SOLD but not forgotten
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