But if you use an international or a foreign driving licence, and you are speeding, the police will take the licence of the car and not your driving licence. When you have an Egyptian driving licence they will take this licence.
So if more people use the car (or the licence of the car is from another place in Egypt than where you are located now) than it is better to have an Egyptian driving licence! When they take the licence you will get a paper which allows you to drive another week and with the paper you will have to get your licence back in the place where it was issued. As you can imagine, the sending back can take a while!