Comment by fragmede

A phone without SIM can still be used to call emergency services (911/999/0118999 8819991197253). The situation we're discussing though is an attack by an extremely-APT. You really think not having the SIM card is going to do anything? If the cell phone hardware is powered up, it's available. All the APT has to do is have put their code into the baseband at some point, maybe at the Volvo factory when the car was programmed, and get the cooperation of a cell-phone tower, or use a Stingray to report where the car is when in range.