I was wondering a couple of things 
I went to see the HUD in person because all the pics and videos I found on the internet were underwhelming. Because of the way the image is projected onto the HUD screen it appears larger the further away you are from it. People have the camera in front of them, closer than their eyes would be when driving, so the text on the HUD is very small in the photos.
In real life it is larger and quite readable (which was my concern). It still doesn't fill the screen, but this allows for different seating positions and different sized drivers... the displayed image changes position on the screen as your head moves around. There are adjustments to move it up and down and to rotate it on the screen. Also, some types of sunglasses make the HUD go almost invisible.
I added it as a toy, but it's become indispensible, especially with the satnav. You get your next turn instruction right there in front of you, with street name and distance countdown as you approach. Some large junctions have lane guidance too.
In real life it is larger and quite readable (which was my concern). It still doesn't fill the screen, but this allows for different seating positions and different sized drivers... the displayed image changes position on the screen as your head moves around. There are adjustments to move it up and down and to rotate it on the screen. Also, some types of sunglasses make the HUD go almost invisible.
I added it as a toy, but it's become indispensible, especially with the satnav. You get your next turn instruction right there in front of you, with street name and distance countdown as you approach. Some large junctions have lane guidance too.
