[leonelm3]

Yes.

I have but.....I have not installed them yet (cause i do not take delivery until 23 Oct)

I kind of pre-ordered the same wheels i have on my E46 M3 in 22s but when i saw the "Recommended" tires sizes I had an immediate issue with the Rear tire size.

285-35-22 front
315-30-22 Rear
Continental Cross Contact UHP

I am exhausting my efforts to find a higher or "thicker" rear set of tires.I am just not comfortable with 30s in the Rear.
I have 265-40 and 285-40 on my Cayenne and I have done very well on those but the X6 50i is heavier than my V6 Cayenne...

On the Cayenne i did not have a weight issue. the aftermarket wheels were a few kgs lighter than OEM. on the X6 50i I suspect my aftermarket 22s will be lighter when the run flats are factored and compared in a combo wheel/tire comparo.

i don't know.... i am getting a headache.