Lexus

I purchase a 2008 lexus on april 28, 2015. When I first saw the car couldn't drive it because it had a flat tire on the driver front side. I went back 3 days later and drove it and took it home. 1 week 1/2 the tire went flat. I put air in it and it continue to keep going flat. I have taken it back several times. One thing the nn police officers checked it out along with the manual and saw the tires were on wrong. The two wide tires were in the front and the small tires in the back. So I took it back and that is all they did was change the tires and the car has been towed there and they have said they don't know what is wrong with the car. My payment is $612.00 and I can't drive that car and feel safe and know i'm going to get home or to work without a problem. I have been back and forth with this problem since may and I told them I wanted to trade it out. The salesman lenny mosley lied to his boss. He was suppose to have spoken to him about the car giving me so much trouble but didn't. The hurtful part is not only did I buy a car but my 2 children bought cars. So I should be happy with car and should have had a good esperience with that dealership. I have spoken to the head saleman and someone name beth in the corporate office and everyone is not getting back to me but yet the policemen said this is a safety hazzard and the tire could blow at anytime. They were suppose to keep the car over night and check it all over. What they did it took an hour aand I took the car back home and that was friday july 24. Monday morning the tire was going flat the code came on the screen. I have a warranty with the car but now I just don't want to keep the car. They can't fix it and why do they think I should pay that kind of money for a lemon instead of a real car. I am riding in my son's car while that car is in the driveway. What kind of dealership is this? Not a way to please their customer especially since it was a family deal. What more can I do to get me a working car. I can be reached at phyllis. [protected]@nn. K12. Va. Us.