Thanks all,

From what I've read, the bridgestones and michelins are high performance, but not "ultra" performance like the dunlops. Still, I'm less than impressed by 80lbs of rotational mass on each corner, of which half of that is the tire.

I'm surprised by the Vredestein recommendations. I put those once on the M3, and literally gave them away after 1 month. The understeer that they caused was just unacceptable. Perhaps they build a better SUV tire?...

Oddly enough, I still haven't been able to find an X5 review on the yokohomas.