I have heard things about going by road to Umrah. Take this Tip seriously. If you are planning to take Umrah trip, go with 2-3 families as people already adviced nu others and if you are going alone, never stop your car in the middle of nowhere, when you see any arab guy signalling you to stop your car for some help. i heard of lately, that some people stop the car and once the driver gets out of the car to see (what happened), then suddenly, they will draw any weapon and ask you money, take your car, take your belongings or worse..
So if you are going alone, stop only in Fuel station or Hotels and not any other place. if needed, to stop your car, don't get down. I hope this tip will be useful for you.