I need to replace my 4 Bridgestone Potenza RE050 215/45 R17 87W tyres, i've been quoted €640 all in (fitted/balanced). As an alternative (non-budget tyre) I've been quoted €415 for Kumho ECSTA HM91W, and told they are an excellent tyre (fitted as standard on new Kia's)... review sites give mixed reviews dependent on the tyre chosen, and I cant see this exact model reviewed - any advice/experience would be appreciated. They are for my 02 Lexus IS200 and have always been happy with the Bridgestone except for wear