Now why didn't I think of that? :roll: Sarcasm has a time and a place. I like to open the windows sometimes. It's nice not to be completely isolated from everything around you once in a while. By extension would you argue that I should stay home if I don't want to be attacked? Neither solution makes sense. It's a matter of having the tools to protect oneself. Technology is good when it's progressive.
Have you ever driven in Lima, Peru? Thieves there are very bold. They will reach through your car window and steal the necklace around your neck if you give them an opening. Although I use that city as an example, the type of theft that I've described is not limited to Peru. It's just that that city is notorious for it. A colleague of mine was there this summer and almost lost her purse. She prevented it by doing exactly what I've told you about rolling up the window. Talk to your police dept. and you might be surprised what's going on in our own city. The quickest thing to do if someone reaches into your window is to roll up the window, trapping their arm in it, then release briefly and and jet. It may be a one in every 100 type of crime, but if you're that one person then 1/100 is jsut a stupid statistic. I'm sure there have been carjackings in your city. That's a lot higher risk than just reaching in and grabbing something. If my car is going to automatically prevent the window from rolling up because a criminal has his hand in the way...
Regarding alarm systems, they're not single-purpose anymore. I don't know when you last had a look at aftermarket alarm systems (from your comments I am assuming you're not aware of their current abilities), but those available now have a lot of other features that their designers have decided may be useful in protecting vehicle owners, and not just the vehicles themselves. My current car alarm has a "panic" mode that can be activated if necessary. Others have built-in features to roll up the window specifically in case someone reaches in uninvited. They can lock and unlock all doors or just the driver's door, either remotely or when you step on the brake pedal. They can open and close windows, sound a panic alarm, etc. It's a different ballgame than it used to be.