Well, things worked out the way I had hoped: as of yesterday this Citroën C6 is my car :sunglasses:
What a car, what a ride. The suspension is about as soft as that of my 38 year old Citroën CX, but it's sooo much quieter.
The blue C5 that shows its nose around the corner was car I drove until yesterday. The CX has been hibernating in the garage for the past few years.