car rental companies here normally offers rental only, you cannot own the car at the end of the contract,i dont know if there are some who offers otherwise.at QR2000 monthly rental you may end up on small car such as honda city, lancer or optra.
some banks called car loan as hire purchase,you'll own the car thru installments.at QR2000 per month for 36 monthly installments, you may get a car worth QR60k; or at 60 monthly installments at the same amount, a car worth QR90k.