I think for my aero I would change a couple of things, minor but each would make it a better experience.
Left foot rest for longer journeys.
Less rattles and fettling needed through fewer and more integrated parts/assemblies.
Improved weatherproofing to allow it to be used more of the year.
What I would not change, ever
Gentle manner with non aggressive visuals (Eva looks a bit Audi-aggressive to me)
Method of manufacture, real people in this country, brands are made and continued through actions not PR. They are to be applauded for this continued commitment.
Big smile fitted as standard.
I am certain your M3W will have a few rattles, embrace them and go with the flow. You will love it all the more. A friend of mine said his Ferrari was always in the dealer, he does less miles than I do !