Thank you all for all the helpful tips.
I would like to add another question: I'll (I have to) probably visit a customer in Talkha. Talkha seems to be approx 150km away from Cairo.
I am not familiar with the roads, how long will it take with a driver to reach Talkha? If possible I would like to keep this to a one day journey and be back in Cairo in the evening.
Thanks for your advice
Wombelero