According to Bloomberg's Tesla Model 3 Tracker, Tesla already produced 226,969 Model 3, out of which 71,307 falls on this quarter alone. With eight days to go, there is a big chance to reach about 75,000-80,000 Model 3 in Q1, compared to 61,394 in Q4.
The number consists of officially announced production results in previous quarters and estimated production rates in the current quarter.
The current pace of Model 3 production is estimated at an average of 5,847 per week.
Keep in mind that Bloomberg's tracker is not intended to successfully track production over the short term. Adjustments are made on a regular basis so that it's fairly accurate over time. Still, it's interesting to keep an eye on it and get some idea of which way numbers are headed. You can take the trends and averages found in the tracker, along with other available online data, and come up with your own estimate.