Four-year drive. Pits, lifeless discs, and no room for rubber. It starts and rakes out smoothly, even on slick slopes when most vehicles avoid or accelerate past the obstacle. The summer Cordiant is quite peaceful in terms of noise levels. Spikes are only audible when accelerating towards corners. After the first season, between one and two of the front wheel spikes were lost, and this continued for the next four winters and thirty thousand kilometers. Strongly encourage purchase.