I have heard about the wonder of pedal lock such as Locktech in securing the car from theft for quite some times. Today, I finally installed one in my car when I visited Brother's shop. The brand is D-Plus, also made in Thailand as Locktech, and feature-wise it seems like both are very identical.
This lock has dual locking system. At the first level, pull the beige handle and the brake pedal will be locked and not depressible. At the second level, push the second lock beside the handle, and the second lock need to be unlocked before the first lock can be released. Both the locks are using the same key.
While this lock is engaged, the car engine cannot be started.
Somebody has uploaded a video to YouTube to show this D-Plus lock in action.