sunqueen ... the benefits you can spare yourself from the pain taking the car for registration down the industrial area, and also you dont have to do the services. The car rental taking car of that.

I guess it is depend how long you will be in Doha? for period 1 or 2 yrs it would more convenient renting a car, if you staying here then you can buy one.

No idea for the prices of car rental ... :-)

How do you find the heat in Doha?