Crates!

What are these crates used for? 

They are colorful buggers, and small as far as crates go. I've never seen anything like them. If you zoom in a few have the words 'Ford' and 'automotive' written on them but also 'tare weight'. So what do you need to weigh accurately, in the crate, that goes with cars? 

Another clue. The crates have a stated maximum capacity of 6,000 pounds. If I'm being generous and estimate their dimensions at 1 meter x 1 meter x 2 meters, for a volume of two-cubic meters, that means each crate could hold about 2000 kilograms (~4,500 lbs) of  water. So, the crates aren't likely holding water (duh) or any organic fluids which are less dense than water. That is, they are not holding bulk motor oil. Of course, these crates are not barrels, so I probably could have figured that out without the maths. Er derr. 

But 6,000 lbs? Most whole cars weigh less than 6,000 lbs. So this is overkill no matter what they are used for. 

My guess? These crates are for precision engine parts that need the extra protection of a sturdy crate. Or cup holders, these crates could be for cup holders.