Now that every one has wrecked this thread, let me add my 2 paisas pls
Quite few of my very close friends and relatives had their cars stolen and after checking the market thoroughly and talking to many many people about remote security systems, GSM trackers, GPS trackers, crooks locks, EACH and EVERY device can be unlocked/broken in few minutes, including built-in steering lock etc.
In the present corrupt and complete lawlessnes, the only way I think of is an armed security guard in every street. But you have to make sure that guard and the company providing the guard is a good one, otherwise more trouble