To save the click and to make the information searchable here on TMC:
"MIC M3 Update: Tesla sales rep says red & black M3s are completely sold out for Q1. Limited quantities of white/blue/silver M3s, if ordered now, can still be delivered be4 EOQ. She further says all orders (regardless of color) placed after wed (1/15) won’t be delivered before EOQ1."
While anecdotal, this leak is very specific about inventory levels and about a new order cutoff date, the kind of information only Tesla sales rep have, so I'd assign it a high probability that it's true. Ray4Tesla is a reliable twitter account with good China information in the past.
BTW., I'm really, really curious exactly how many those "Q1 sales" Tesla China is planning is. Is it 10,000 units? 15,000 units?
Ray4Tesla suggests it might be more:
RayTesla️ on Twitter
"I can see an incredible year ahead for teslacn
since demand is basically going through the roof. The earlier estimate of 150k Model 3s for #GF3 by EOY may be too conservative. Combined w/ rising demand in EU, things look exceptional in 2020."
Another users asks him about production levels: "This article says they’re already at 3000 a week", to which he says:
"I think that’s the capacity they have right now. Judging from recent hiring round, they may have added 2nd shift. My best guess is around 2k now. Gradual ramp-up will push it to 3k soon."
Achieving an average 2k/week at GF3 through Q1 would be phenomenal ...