Go to Abu Hamour inspection center at 6:00 AM. and you can get things done in about 1.5 hours. Easiest and cheapest way !

They open at 7:00 AM. If you are there by 6:00, you should (normally) be the first in the line. Inspection takes hardly 15 minutes.

But remember, if you reach there by 6:30, there would be 15 to 20 cars already! Consider 15 mins for each car! (they check only one car at a time). And you will be late to come out. So reach there, sharp 6:00AM !!

Location: If you take the route from Holiday Villa (D ring road)towards Industrial area, you will reach the intersection of E ring road(the big roundabout). Proceed straight towards industrial area. After about 300m, the 'medical commission' complex will be on your left side. Just after crossing this, you will see couple of huge white Waqoud storage tanks to your right side. at this point, turn into the service road (to your right side) and then turn right. You will see a huge arch-shaped portacabin installed in the middle of the road. That is the inspection center :(

Good luck !