The eight electric eyes on the front and back of Audi A4 refer to the eight cameras configured on the Audi reversing radar. Four in the front and four in the back.

The electric eye is what people often call a surveillance camera. The car electric eye is a special camera for cars.

The probe installed on the bumper, in order to prevent the novice from hitting the obstacle when reversing, there will be a small display screen above the dashboard, which will show the distance between the rear of the car and the obstacle when reversing, which is convenient for reversing.