The more cars on the road, the more willing to get cheap spare parts on them, so there will always be those who want to meet this demand. The trouble is that they will try to satisfy it by criminal means and at your expense... that is, at the expense of your car.
Long ago, when many of my readers were still watching cartoons, carjacking was commonplace. Often, cars were stolen for resale in another region with broken numbers, or sold to you, just by calling in a couple of days and offering to return them for a fee.
Insurance wasn't so advanced, and truck owners put up alarms, anti-theft locks, removed batteries, and even rudders. This is not a joke. Everything to ensure that in the morning the car stayed in the same place where they left it, even if it would be without wheels. They were also taken off.
Today, mechanical anti-theft isn't much less important, as not all cars are insured against theft. And stolen often, mainly for dismantling for spare parts. And if there are no "helmets", and the car should be left in a "dangerous" place or just to protect itself, leaving it in a private parking lot near the airport, not always responsible for the safety of your car, it is better to be safe.
No, you don't have to take off the battery or the steering wheel and try to get on the plane with it. It is enough to choose a mechanical anti-theft device, which will protect even the car with keyless access, if the criminals retransmit the signal of your "mark" and decide to leave. If you don't know yet, it's easier than breaking glass and getting to the wires under the steering column.
It is best if the anti-theft agent is visible to the hijacker. It is not easy to glue special stickers on the glass about the presence of additional protection, except for the standard immobilizer. With a high probability, the offender decides to choose a more affordable victim than to waste time on breaking into mechanical protection and risk being detected and caught.
There are many different means on the market, ranging from "alarm" buttons, satellite systems and ending with traps for the hijacker. Of course, I'm kidding, and repeat the experience from the movie "Beware of the Car" will not be.
The word trap is quite suitable for devices blocking the steering wheel, steering column, pedals or gearshift lever. It is mechanical anti-theft devices that I will study in detail, as well as their application in real life: ease of use, convenience, protection.
The weakest point of all anti-theft systems is that they are designed for the fact that in the event of an unsuccessful attempt to steal a car, the driver must drive in the morning. We will be silent about the car hijackers' unfolded grief. Have to sit down and drive.
If we exclude the need to "sit down and go", the task of protection is greatly simplified, and the theft becomes almost impossible.