my friends new baleno was stolen in 10 mints from parking
it was having a immobilizer.
bmw and merc got good security system but they also get stolen
its not the immobilizer which saves your car its your luck.
locks cannot stop a car from being stolen they just increase the time it takes to stole a car.
define ur own lock , security switch any thing which u know where it is u can save your car easily.