Tried iOS 13 Beta in A220
I tried CarPlay ios13 in my A220. It does not fill the right 10.25 inch screen and does not take up any more space than ios12. The problem is the Mercedes has the home icon and a message icon on the top of the screen and the driver and passenger temperature setting on the bottom lower portion of the screen. Mercedes would need to do a change to their software if they wanted CarPlay to fill more space. I doubt will MBUX they would want to do that.
Other than the above ios13 CarPlay works fine.