Thieves, locks and my M800

I'm planning to sell my old 'n faithful M800. It has served me well for more than 3 years. Has done 32000 odd kilometers without ever breaking down and has never needed a mechanic except for the odd denting job. Not only do I feel that maintaining two cars is prohibitively expensive but unsafe too. Both my Santro and M800 have survived attempts of theft. Last Wednesday, I was woken up at 3'o clock when watchman rang the bell and told me that two guys just ran off from my car after seeing him, I went out to discover that they had broken in my car. All the doors were open and windows too. Thankfully the good old Harrison lock at the steering joint was there. Not too long ago my mother discovered one fine morning that the quarter glass of Santro had been broken and someone had broke into the car, the gear lock saved me this time! I changed the manner in which i parked the cars at my place. Although bigger, Santro was inside and 800 was outside but now this happened. After Last week's dramatic episode, I put two steering locks (long rod ones), one Harrison lock and tie the car to the gate with a chain. I know it isn't foolproof but I hope it is deterrent enough. BTW, just before the lock of the main door, we are putting 8 locks these days!!! And considering our financial position, we needn't put any ;-)

All said, I just hope thieves aren't reading blogs these days...