Took delivery today! Only got to drive it a few miles today but what a car!!! Incredibly excited, and it's already exceeded my expectations in many ways.
My E39 M5 was my favorite car I've owned - I was hoping this would be much the same, but with 20+ years of improvements. That's exactly what it feels like to me. Same beastly engine, same buttery ride, same fancy toys and elegantly aggressive style... but just more, MUCH more, of everything. Couldn't be happier. And was not nearly this enamored with the E63S I drove that I had previously set my sights on.