We rented a car for 3 months while waiting for our QP loan. I can find out the name of the company and pm if you like. The company we used delivered and collected the cars and were really helpful. It was 400QR a month for a Mitsubishi saloon car, not very speedy but had good a/c. When we went to Mannai to collect our new car, the rental guy met us there and took it back. The staff we dealt with were all really good English speakers, a great help when first arriving here!