These tires came with my Cadillac and have provided excellent wear and performance. There is still quite a lot of tread remaining and they do not show any cracks. However one of the tires has developed a annoying whomping sound like it has a flat spot and a scrubbing feeling while turing and accelerating. The whomp is especially noticable at city speeds (30 to 40 MPH). I had the dealer balance and rotate the tires but it just moved the noise to another part of the car. I had an independent mechanic inspect them and he affirmed that the was a high spot in one of the tires. These tires have a lot of tread on them however I find that I have to replace them if I am to enjoy the quiet and smooth ride of this Cadillac.