Heartbeat Sensor??

I just saw an ad for a car that features a heartbeat sensor. This sensor measures if someone is in your car as you approach it. So many questions here:


1) Wouldn't the alarm just go off in the first place?

2) Wouldn't the car have some sort of broken window?

3) How many people come back and find out too late their cars have been invaded? This is an actual problem?

4) The commercial shows the lady check out the heartbeat sensor, and back away from her car. She's all alone. Well, maybe I'm reaching here, but wouldn't whoever was sneaky enough to disable her alarm without obvious damage while lying in wait for her simply chase her down like a dog?

Just make a car that never breaks down you fools!!

Here's the crazy info if you want to feel safer about your Volvo