Anybody recognize these parts?

[HotWheelsKid]

Anybody recognize these parts?
I am starting to dig into my Spyder GT build and going through the inventory/parts and i have these 2 plates that i cannot figure what they are. Any ideas?

https://thefactoryfiveforum.com/attachment.php?attachmentid=161725&d=1643940913

[HotWheelsKid]

And just like that, Solved. (On the roadster forum) Thanks for all your help over and over again.

Turns they are the seat mounting plates. The instructions for the seats are extremely vague with no illustrations and no mention of plates.