@CKN when I was there, they would make a tick north of 500 cars per shift, two shifts. May have been different East Plant and West Plant; that one will soon make a Lexus side-by-side with its Toyota version.. the Lexus is the better of the two. So that's at least 100p vehicles per day, possibly 2000. From one plant. Haven't even talked about Kentucky or Texas or the other ones..
They DID elect to go to a 4 day work week and WERE talking about 3rd shift (so it runs 24/7) and shifts usually ran 2 hours OT every day, shifts named after Lexus colors.. so, it is entirely possible they are ramping up to make more production. It was a point of pride for them how they only had to stop making cars for either "a few weeks" or "a few months" in 2008/2009.
I only hope all this is helpful, I parted ways with them, so I'm only relaying some non-specific general information. They have knee-jerk reactions that I don't like. Such seems to be the nature of the business. Then there is the market they make cars for, West Plant used to make RHD cars for Russia, that was the market for the RHD vehicles... so, I'm thinking they used their couple of months "downtime" - during which I said "See ya," - to find new suppliers for their routes etc.
Still pallets full of empties and cardboard boxes because yeah, shortages, but, as mentioned, maybe Sumitomo, Denso Michigan, and a lot of other places that deal with many places not just Toyota.. who operates like Walmart and Amazon combined.. stepped it up or changed.