You asked this question last year? Still no answer?

http://www.xoutpost.com/bmw-sav-foru...es-around.html

What seems odd to me is if they're directional AND have an inside & outside, then they would have to make 'left hand' side tyres, and 'right hand' side tyres, as no tyre could actually run on the left AND the right and be going in the right direction with the correct inside/outside orientation. I have never heard of that before