Interesting topic of conversation..
Laguna II - Anti-intrusion and immobiliser systems Info..
The Laguna II benefits from the latest developments in terms of anti-intrusion and anti-theft security. The driver’s door lock is equipped with a free-rotating barrel protected by a cover. All the mechanisms are protected by casings and operation is by cable, which makes any attempt at « hooking » much more difficult. The computer beneath the bonnet is also protected. Before each engine starting authorisation, the card and the reader interrogate each other. Only when the first interrogation of the card has received a correct response is the steering column unlocked and permission to start given. The identification code carried on the card is a rolling code and the electrically operated steering column latch is also coded. A strengthening plate prevents direct mechanical attack on the steering column. Because of its geometry and whatever the position of the steering wheel, the latch always engages in a recess to lock the steering column. A declutching system prevents any attempt to break off the latch by applying a high torque to the steering wheel.
Hopefully that adds some explanation to the reasoning behind the theory but I too wonder if tests have been carried out and can be found on the net or in an old motoring mag by anyone ?
The next addition to the Lag II spec list should be (anti scratch or anti key paint laquer !! Right ??