The best car to use in Doha (yes, I mean the city, not the Qatari desert and beaches) is a White Toyota Landcruiser.

1. The roads are so bad.
2. You can jump through hoops to get there faster, you're not even restricted to the tar road.
3. When you want to U-turn, you don't have to wait for the next round about or traffic lights, you can do it anywhere.
4. When you drive fast and flash the car in front of you they move out of the way.