Bit of a debate going on over on Dutch forum but apparently nothing is completely safe as they (thieves) like to use GPS jammers these days which will rent your tracker useless. I quess a combination of multiple systems will give you the best shot at keeping your pride and joy within your ownership!
- GPS tracker
- Ultra sonic alarm system or something similar
- Battery or/and fuel pomp disable switch
- OBCII with coded start immobilizer?
- BMW gearshiftlock if you have a manual
- Steeringlock
- A big sticker saying: If you value your life as much as i value this car you won't f*ck with it
