Wheels with Windows?

I heard just enough of a business story the other day to worry me. The story was about Microsoft licensing Windows to be installed in new automobiles. Do you get where this is going? First I’m wondering if the cars will be so loaded with features and options that they will never reach top speed. Next, I wonder about if I roll through a stop sign or turn left on red, will I get a message saying that the car has performed an illegal operation and will be shut down? Will the car occasionally fail to accelerate, brake, or turn, requiring me to shut down and then restart the car? To shut off the engine, will I push the “start” button? And finally, what happens when the system crashes?