The Tesla mobile app should have 2FA (two factor authentication). It's entirely feasible to steal a Tesla by compromising an owner's account.
The new wireless charging points are a great convenience. But it makes it easier to accidentally leave your phone in the car as you leave. The car should detect that the phone used to open the car is still inside the car as the driver exits the vehicle and use the external speaker to remind them of this.
Currently the Model X and Model S does not support using your phone as a key (as passive entry). Sometimes it's nice to not have to carry around a key fob.
The idea would be to bring this same feature that's in the Model 3 to the Model S/X.
It would be convenient to be able to customize the walk-away door lock settings (by geolocation), for instance to disable it when you're at home: in reason of the key fob's signal range, my car keeps opening and closing randomly in my garage when the key fob is anywhere in the ground floor.
Be able to directly link to car via app or key or Bluetooth in UK to enable summon without mobile signal dependency.