I'm confident that we can resolve the stop-start thing, the only real question is who pays for it (and to what extent things need to be changed to achieve it).
However, one thing that is taking up my spare thoughts today is the pedal offset, which is leading to back-ache - something referenced in another thread that is current in this section of the forum.
The accelerator pedal is quite far to the right, my natural foot position falls on the brake pedal.
I'm going to have a play around with seat position to see if maybe moving the seat up changes the angle sufficiently to avoid back pain, but it's a bit of a puzzle to me why Mercedes offset the pedals so far.
I will need to fix this as there's no current M5 Touring, and the RS6 Avant is not for me.