But not even close to a passenger's head. The driver is responsible for being capable of seeing around an obstruction like that or they should not be driving.
Printable View
Of course "driver is responsible for being capable of seeing around an obstruction" no one has said they were not!
If the projector isn't masked, you're also projecting a scene into the next car over at night. Might be a bit distracting to that driver.
yeah there are issues especially with the projector that is why a LCD might be better.