Well my Dear Friend, welcome to Dubai. First question that I have for you is Do you have a UAE driving licence? If yes, then you can own an Audi car. You can browse around Satwa auto market, you get good deals for useed cars there. Best thing is to buy a used car from a dealer or a brand showroom only. They will provide you with complete history of the car and also, they are more trust worthy than other auto shops. This is when you have the UAE licence. But if you dont have, you cannot buy a car here even in your dreams. Get a licence, and then search for cars.