> a mandatory cloud connection
A "mandatory" cloud connection is not a problem. The problem is to know, and have full control over, who has access to what data of yours and what for. Another problem is to disabuse manufacturers of the idea that they can force you to enter a contract with a third party in order to use your car. For example, it's all very well to be able to control your car from your mobile phone, but not if that is going to involve downloading the relevant application from say Gargle Pay, or have Gargle Clout Services installed on your phone.