It might also mean the factory didn't put out 1000 cars this week. If it didn't, I wonder what it did produce.
My understanding is that rear-wheel S model production continued when there was momentary concern about delivering P85Ds. When the window sticker issue was resolved, the P85Ds entered production again. I wouldn't expect changing from P85D production to rear-wheel S production and back again would be all that time-consuming. This has to be a fairly common scenario in the factory.