I've always ran Michelin's as well. But they don't make a RFT in the 20" size (I have to have RFTs since with 3rd row seats I have no spare). I like the Dunny's but will probably switch to the Bridgestone's for slightly better durability (and cheaper) when the time comes. Maybe by then (sometime next Spring) there will be some new RFTs on the market that last longer than 25K miles.

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2008 X5 4.8
Jet Black/Black Nevada/Dark Burl Walnut
Adaptive Drive
Premium Pack
Tech Pack
Climate Pack
Sport Pack
20" Wheel Option
Premium Sound
Sirius Satellite
Rear DVD Entertainment
Multi-Contour Seats
Comfort Access
3rd Row Seat
Heated Front Seats
Running Boards
3M VentureShield Paint Protection Film