1. The driver's sight is mainly concentrated on the left side. In order not to affect the line of sight when driving, the best position to move the license plate is the right side (behind the front windshield of the co-pilot seat).
2. There are also some mobile phone number plates on the market that can be placed outside the front windshield, but it is not recommended to buy them because they are easily overlooked by drivers of other vehicles.
In short, in order to facilitate other car owners to find the mobile phone card quickly, it is recommended to stick the mobile phone card under the windshield of the car.