Q:

Tires stuck in the floors, what is the use?

While playing I sometimes encounter tires half buried into the floor. Curiously mostly on buildings, or other places where you would not expect tires.
I can activate them to 'open'. But that does not seem to do anything.
It looks like this: 

And this happens after activation:

(So, nothing, disregard the different location, 2 different screenshots)
Does anybody know what it does?

A:

This is a bug which turns normal, lootable containers into vehicle tires. This does not appear to be part of the Korek Machete 2.0 Easter Egg weapon that uses obscure interactive items to retrieve.
As far as I can tell, these tires cannot be looted in the same way containers can be, but the prompt to interact with them still appears. This also explains why you see these strange tires in more than one location. 

