So you would like to keep your car from starting without your phone? The BT25HD4.0 App Connected Car Immobilizer has you covered. It doesn’t allow anyone to operate your car without a valid Touch ID or Face ID. It is smart enough to automatically arm 3 minutes after you turn off the car.
The BT25HD4.0 supports pairing to up to 5 smartphones. It also has a valet mode. You can find out more car immobilizers here.