This doesn't obviously address the issue that I doubt there's even 400k cars there which more than doubles the likelyhood. That's not nothing, it's over 25k stolen cars in a year and an enormous burden on the local police force.
Naturally, it's the one window that even my Haynes Book says "don't try replacing it yourself; hire a professional". Thanks, guy-who-desperately-wanted-my-jumper-cables-and-jump-box-out-of-the-back-of-my-car. Real considerate of you.
Smash and grab makes sense if you don't have those tools and know no one, not even pedestrians, react to broken glass or car alarms in that part of town.
Of course, with both cars and bikes, police have much more important to do. That's the invariant: whatever the crime, there is surely something more worthy of their attention out there, so nothing is ever done.
I'm only half-joking.