All of the devices that disable the ignition are ok, but they won't keep the vehicle from being towed. And a lot of stolen vehicles are towed. Turning the front wheels all the way to the lock and then using a cable that is wrapped around the gear shift to keep it in gear and then locked to the steering wheel will keep the casual thief from stealing it. However, if they have been eying it for some time, they will bring a bolt cutter. Keeping it in a closed garage is probably the most secure, but if a professional wants to steal it, it will get stolen. Especially if you are close to a sea port where they can get it into a container and it will be gone forever.
