when looking around dealers for my next car I got a mixed response when I eventually said I was a mb customer. I just walked out to those salesman that turned their nose up at me.
The politest and most helpful dealership was Hyundai, I was advised that I could have either the Ioniq SE premium or the Tuscon premium from their showroom. A few days later I went back to enquire on the Tuscon Ultimate and the salesman said they have a stock order due to be built and allowed me to have that. Took delivery about 10weeks later.