Leftie
Tour Winner
Just imagine Hobbit as a BMW driver. Seeing that face in close up in your rear view mirror 

I put a bunch of miles on an A6 last year, as you know it's an armchair on wheels. Great for long journeys. That said, it's absolutely no fun at all. Large car that's front wheel drive?! That's crazy to me. On roundabouts you have to wait all day for it to roll over before you can get back on the gas. The switch layout is like the engineer opend the door, chucked all the buttons in, done.
The BMW will be a little smaller but more refined/more plain. Idrive is awesome. Rear wheel drive but 2.0d might be dull.
What engine size can you have the A6 in and do you need the bigger car? Not that the 420 is small...
Both 2.0d. I like the size of the boot on the A6 for the trolley and clubs, and I do some 500+ mile journeys a few times a year.
Think I'll go for the BM. I fancy something different...