Assuming you park next to your house a WiFi connection on the local network would be everything you need. Relatively cheap compared to the car would be a repeater to extend it for people like me who park 30-50m away I agree with you assumption that this is car manufacturers creating software based planned obsolescence. An open source framework would resolve this concern even over cell networks but defeats the entire point of also pushing power windows and seat heating as a service.
Assuming you park next to your house a WiFi connection on the local network would be everything you need. Relatively cheap compared to the car would be a repeater to extend it for people like me who park 30-50m away I agree with you assumption that this is car manufacturers creating software based planned obsolescence. An open source framework would resolve this concern even over cell networks but defeats the entire point of also pushing power windows and seat heating as a service.