I used s drive and c drive2 and they great up to half of its life, after that, they not so good but still ok. Once they have about 1, maybe 2mm rubber left - absolutely crap which is easy to feel while driving. You could say, they speak to driver, when is time to change it for new. They quite soft compound too, so they tear relatively quick. The car is vectra V6 and I like to show, that it's not another plain vauxhall on the road. Overall good tires worth its price, last easy for first season in front and another on rear axle. Will buy again.