That's an interesting one.
I would like to but I do not see how.
However I use Home Assistant indirectly to controle remotely the PHEV.
I use an old android phone with a cheap SIM-card. On that phone I installed the "Remote ctrl" app.
That phone has a VPN conection through wireguard with my home assistant and also has a remote controle app.
I use DroidVNC-NG VNC server. I reckon another will do as well.
My cellphone (iPhone), iPad and windows computer have a vnc viewer and have also a VPN connection with the home assistant.
That way they are virtually in the same network.
That way I can mirror the screen from the android cellphone in my car from anywhere in the world.
The only thing is to make a 24/24H 12V connection to the battery.
And no, I did not run flat, even after three weeks. The car charges each day, during one hour or so, the 12 battery.
I would like to have an integration for HA. I do not think it exists ?
A.