Short deturn today to the Brand Experience Center. Unfortunately, it was closed but I had a chance to see for the first time the 2 M4 through the glass.
I was especially interested in the Portimao blue one as I own a M340i G21 with this color (that you can see on the last picture
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I'm not convinced to trigger a purchase but I must admit that the front face looks good like this. I prefer it compared to the 4 series.