A steering wheel lock is better at preventing car thefts, something like this https://www.milenco.com/products/automotive-security/automotive-security-wheel-loc

A steering wheel lock is better at preventing car thefts, something like this https://www.milenco.com/products/automotive-security/automotive-security-wheel-locks/high-security-steering-wheel-lock https://www.milenco.com/products/automotive-security/automot... Then it doesn't matter if someone gains entry to your car and is doing some of the more recent tricks involving the CAN or USB to disable built in immobilizers or convince the car a key is present, the ability to drive the car away is removed without a heavy and loud power tool in a very confined space. An airtag may help with deterrence if the presence of it is advertised, and may help with recovery if the police are actively doing recovery. But the car is still going to get stolen, it's still going to be inconvenient and involve dealing with the insurers (who do want to avoid paying out). A steering wheel lock is a far more effective deterrent and preventative.