Hackers Can Take over Your Car’s GPS
bloomberg.com
bloomberg.com
The for-profit spokesperson doth protest too much?
Unless your GPS receiver is hosting its own model of what the GPS constellation SHOULD be based on your location and the current time, and can beamsteer its antenna elements to null out the spoofing, you're wide open to having someone just spoof GPS with a low power transmitter. This is old, old, old news.