Sorry JP, no photos of test drive, hopefully you will come away from dealers on Wednesday with a resolution for yourself.
My fingers are crossed for all the other owners picking their cars up, if Millduus and Andy b's are ok on 21 inch tyres then something has happened. Hopefully owners with the issue can use it as leverage against the characteristic stance.
I would be willing to travel with my car a reasonable distance so that someone with a car with the issue can go into dealers with me and say if it is a characteristic why hasn't his car got it.
Might not do any good but worth a try.
2017 GLC AMG43 premium plus, night pack, leather, intel lights, 360 camera, side steps.