A-PILLAR Vehicles have two A-pillars, one on either side of the front windshield. The A-pillar usually supports the roof of a vehicle and is located in front of the driver. On convertible models it also represents the main roll-over protection, and is among the strongest body parts. Adaptive Air Suspension AAS Created by Audi engineers, the Adaptive Air Suspension is an electronically controlled air suspension system coupled with continuously adaptive damping. Originally an Audi A8-only feature, it is now available for the Q7 SUV also. Each of the vehicle's wheels have air suspension struts which are being electronically controlled by a central control unit which takes its data from sensors on the axles and acceleration sensors on the body. Making necessary changes in milliseconds, the computer controls the damping force at each individual wheel, thus minimizing uncomfortable body movements when the car is braking, cor