GM had this years ago
General Motors had a HUD feature on some of their cars a decade or more ago. True, it was a bit primitive. I think it was limited to your speedometer and other gauges. Though some 'premium' cars like Cadillac had an IR camera and night vision display overlaid on the windshield. So in theory you could drive without headlights. Don't get started on why this isn't safe.
I think the HUD for navigation and possibly phone calls would be useful if it can be made as non-distracting as possible, as it will keep the driver from taking their eyes (completely) off the road. But having someone's face pop up on your windshield at the wrong moment could be catastrophic. And with so many apps driven by ads (no pun intended), I really don't think we need to be bombarded with advertisements in the middle of our windshields while trying to drive. Especially blinky, intrusive adds like. "You Have Won!!"
(I used the Satan icon because it actually looks like a happy little car)