My HRE set comes with Michelin Diamaris with about 90% thread when I had them last year. They are on the X for about 8K miles already and still have great thread. With my alignment setting, they worn evenly. They are good tires but too expensive. Next set would be Continental DWS.
On my daughter's X5, the tires are Bridgestone Duelers.

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00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)