Mtec grooved discs and red stuff pads , because that's all there was in stock , lasted until breidscheid bridge before fading into oblivion on a 3ltr z4 , yellow pads were great in my previous z3m coupe .
I'm not an aggressive driver but the reds faded badly , but to be fair , I let them cool down and they did work ok by carrousel . I just drove with it in mind for the other 11 laps !