Slots on third row?

[bhorn]

I can't find any info on what these are for. Maybe some kind of accessories, like a cover for the cargo area?
There are two on each side.
They can be pressed in and have a spring mechanism underneath.

 

[Qbenjamin]

There was a very limited amount of them issued, but apparently there is a cargo cover like what's in the Model S hatch area.

 

[bhorn]

Cover that conceals what is in rear cargo area

Awesome

Searching for "model x cargo cover" works

 

[forkee]

yep, parcel shelf

Model X parcel shelf