I think for extremely limited capability embedded devices it makes sense to have Linux kernel + Wayland - but anything modernly new Android will do fine. Honda uses it in their in-dash entertainment systems for example.
What do you gain with Android on a small device (that's not a computer screen like a head unit) though? You just add a significant maintenance burden because you need to tear out all the phone parts from the OS which make updating and patching it really hard.
