Thanks. I was really surprised to see the Michelins. My dealer told me that he has heard that BMW did not sign an agreement with Bridgestone for all models. Therefore, I'll bet that all X6's with the all season tires will come with Michelins. Don't know what the 20" performance will be. Maybe not Michelin, since 2009 X5.0 w/performance came with Dunlops. According to some other dealers, Michelins are more expensive than Bridgestones (?), and are more difficult to obtain. But one has to wonder. It would be nice to be able to get some info from the factory about all of this since BMW drivers are definitely sensitive to quality of tires. When I went to Mercedes in 1990 until last month, those buyers couldn't care less about the tires...just as long as the car had 4 of them. Sure nice to be back with people who actually care about the performance of their vehicles.