Nice motor, i have been monitoring this thread. I am also looking for something comfortable, having had an Audi A8 4.2 and BMW 550i in the past, both gave me troubles around the 90k mark with gearbox issues and various other things so i am staying away from the German big three, i want something more durable and different.
How are you finding the ride quality? is there much wind noise or tyre noise? (big deal breaker for me this).