2006 BMW 325I User Comment / Complaint

In may 2006, i leased a new 2006 bmw 325i with the sport package from don jacobs bmw in lexington, ky. this package is comprised of 17" tires that are bridgestone potenza rft. my car currently has 11,990 miles on it, the tires are worn out, extremely loud and will not go in the snow. also, bmw informed me that my car has a stability control sensor that is not functioning properly and will cause the car to overcorrect itself and possibly cause the car to swerve without warning. however, the bmw dealer sent me home (120 miles) in this vehicle the same day they diagnosed it. i am concerned that my car is not safe. not only are the bridgestone potenza tires on my car extremely worn with little mileage on them, the stability/steering sensor has gone bad. i am afraid that my car will steer itself into oncoming traffic while i am driving it. total failures include 4 tires and one stability sensor.