Jerry, I feel we have to face the fact that if its specialists that are after your car, not a lot can be done to stop this happening. It really is the amateur and opportunist, that at least we should be able to deter. For this the alarm and immobiliser should help and a tracker, but I think in the UK for a tracker its a heavy cost particularly for my car that is only used currently for the 4 weeks I am back in the UK each year. The rest of the time its in secure dehumidified storage.