Your car has long been a sanctuary on wheels but that won't be true for much longer. Car manufacturers will soon be adding radar and lasers inside the cabin to monitor who you are and what you do, and that will mean even more of your personal habits being tracked.
Millimeter-wave radar is perhaps the most intriguing in-car detection tech. The apparatus itself can be compact because its frequency is so high and therefore its emitted wavelength is short. I've seen several examples about the size of a card deck that could easily be mounted on the headliner of a car and look down at its cabin.Texas Instruments has been showing carmakershow that view can not only detect objects in the vehicle but also classify them as an adult, a child or even a dog.