Ourisman Mazda

After the purchase of a new Maxzda CX-9 from this cardealer I have been saddled with problems with this vehicle. I have been to Ourisman Mazda with problems with a oil/fuel smell which was not diagnosed by the argumentative salesmen till the vehicle finally broke down on the highway 3 months after purchase. Till date the service department has not been able to fix the car and yet Mazda is refusing to replace the vehicle. l