I'm not thinking it has anything to do with the HUD. Otherwise, I would think it would be mentioned in the Tech Upgrade Package with the HUD.
The AR feature of the HUD has the vehicle overlay onto the road, but not see-through.
AR sometime includes the use of 3D objects, but it's not the same as 3D surround viewing.
What you're suggesting sounds like the "3D Surround View Monitoring".
That's what I'm thinking the "see-through display" is, but thought someone had asked and knew for sure.
Speculation is good, but I like confirmation of speculation.
However, it will have to do for now. We've all become pretty good at it.
Also, no shade on the SAs, but it's possible they don't know or aren't sure yet.
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