Originally Posted by bmwmick
These tires should be on the car from the factory.
I could not agree more - can you imagine how well the Z would do in car reviews if BMW would put real f__________ tires on their sports cars from the beginning. It is a huge detriment to BMWs to have to compete with cars in comparison testing or otherwise while hobbled with RFTs. RFTs to Michelin PSS is a complete and amazing transformation. Do not be fooled into thinking RFTs are good - some are better than others but they are all terrible when compared to even decent standard performance tires.