You can get interest-free loans that are shari'a compliant. They tack on a profit rate. So don't worry when it comes to that.

In terms of not wanting to own a car, you can always rent a vehicle and that way the company will handle all service and maintenance costs. To give you a rough idea, a Honda City will run you about 2,000-2,500 QR, Civic 2,500-3,000, Accord 3,500-4,000QR all 2013 models if taken on a one-year contract.

I can pass along the details of the company I rent from now. Just let me know through a private message.

It might be a good idea to start off for the first couple months until you get your bearings straight as maintenance costs for vehicles can be quite high here.