They do look very interesting MJF. I am afraid I cannot help with experience or feedback but would be keen to get your comments moving forward. The alpine in the Coupe is an eyesore. I use my iPhone for pretty much everything and have a nice new mount coming which I will share once tested.
I looked at the 1DIN units where the screen was hovering in front and could be lowered so it did not obscure the buttons. Sony, Alpine and others offer there. Do beware of depth of any replacement unit in the dash as there is not a lot of space/depth. Many of the modern mech-less (no cd) units seem to be a lot better.
https://www.amazon.co.uk/Sony-Xav-AX8050ANT-Monitor-CarPlay-Android/dp/B07ZJZSSTY.
