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INThis DIY anti-theft setup uses a simple mechanical principle—physically blocking movement instead of relying on electronics. By wedging a metal bar between the accelerator and brake pedals and locking it in place, it prevents either pedal from being pressed, making the car undriveable even if someone gains access inside.
It’s quick to install and doesn’t depend on power or software, which makes it appealing as a low-tech deterrent. However, while it can slow down opportunistic theft, determined thieves may still find ways around it, so it’s best used as an extra layer of security rather than a complete solution.
Sometimes the simplest designs are the hardest to ignore—turning basic mechanics into a practical line of defense.
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