No, not yet. I am thinking about ACS, but I want first see how the 20" behave in daily driving.
We will get it mounted tomorrow. This is because the pictures are just taken after I had the rims be check by german TÜV. Afterwards I mounted the winter tires back. So I have no experience regarding real ride quality, but if I remember right, the ride was softer with the 20" PPS then with the 17" RFT tires.
Also it handles significantly better, I think because the 20" BBS-CH-R with PSS weights LESS then the 17" OEM rims with RFT tires.
So to came back to your question: We will see!
Next project after I will have bought the M3 out of leasing next year is the performance exhaust and powdercoating the M359 rims. So perhaps the F11 remains stock...