Today I was in my sister-in-law's 07 tC and noticed there are 2 hooks on the bottom-rear of the driver's seat. There is a hook on the left and right rear bottom (where the 2 rear bolts that hold down the seat are located). My 06 tC doesnt have them. What are they for?

Here's a pic of what I'm talking about. I took it with my cell phone while the car was in motion.

 

wow never have seen that before. Almost looks like it's a stop to prevent the seat from going further back on the track.

Anyone else know what they are for?