Rear tires are complete bald after 5000 miles. We have had car for over a year. Dealership has inspected and verified alignment is fine and there are no signs of aggressive driving. When we purchased vehicle parts were missing from rear tire and we had to wait for them to be replaced. The car is not drive able at his point. They are saying that we shouldn't have driven below 45 degree. This is my wife's everyday car but any signs of bad weather she takes a truck to work. They was no mention when we purchased the car that the tire would self destruct at 40 degrees. There is nothing in writing from the dealer or tire manufacturer stating this. Both the manufacturer and the owners manual states that they recommend snow tires below 45 but the tires are not damaged until 5 degrees. Even at 5 degrees the tire crack. I have not been able to use this car for over a week now while they decide what to do. The car is not with them so not sure why it would take this long. There is nothing that states the tires fall apart below 45 degree. The vehicle is unsafe to drive, the tires are so slick that there is no traction. I was informed at 2500 mile tires seemed worn but dealer told us they were high performance tires and it is ok, and the person telling us didn;T understand Porsche high performance tires.

- Bohemia, NY, USA