BTW, fourth quarter 2017 production and deliveries numbers were revealed after the market close on January 3. January 1 was the last day of a three-day market holiday weekend, as was today, April 1. So I would not get too worried, if we have to wait until after the market close on Tuesday for the report.
However, if they have some good news that they hope can stop the slide of the SP, then they will probably release that ASAP.
OTOH, if the numbers are not too good, then they are not in a hurry to release them. So I'd guess if we don't see anything by Monday night, then the numbers are not too good.
Just my $.02...