[Scottn1]

I have a Tesla. It is trivial to steal; you just get my phone and you have my car. It is tied to the car through Bluetooth that auto unlocks AND drives without any other security measures beyond just being close to it with the devise. You don't even have to unlock my phone. Getting my phone would be the harder part, but it just would take a lapse in paying attention (like left in on the table to get a drink refill).

The comforting part (unless you consider the immense privacy issues) is, as you mention, how tied the auto is to Tesla and my account. I could have the car disabled and tracked probably less than 10 minutes of discovering it was taken. I could also lock/erase my stolen phone remotely which would then disable driving the car again once it was put into park for the first time.

[brontitall]

There is the option of PIN to drive. Evaluate your threat model and decide if you want to enable it.