Many of these cars have a power button -- if the "key" is inside the car, the button is activated. When the car is on, and in park, it will turn off with a simp

Many of these cars have a power button -- if the "key" is inside the car, the button is activated. When the car is on, and in park, it will turn off with a simple press of the button, but when in motion that does not work. (I've been told that holding the power button for several seconds, just like one would a crashed computer, will force a shutdown; can't verify that though.)