"Same here. While I'm quite a fan of virtualisation (the computer industry have been virtualising different layers for decades) when it come to life critical systems these should be physically separated from anything else. This is standard practice in industrial safety systems."
Agree, but it won't happen before many People have died due to security issue on the cars' Systems, and it has been proved, and some regulations has happened.
Cars manufacturors, those days, are after 10 E worth of costs cuts per car, which is incompatible with anything dedicated.