OK, I was off by 4,012 units. This is a similar error to my past estimates. However, I got the S/X vs Model 3 split wrong. Especially, overestimating Model 3 by 9% is bad. I'm putting these details out there for transparency.
- Q2 2018, I underestimated by 4,011
- Q3 2018, I underestimated by 3,169
- Q4 2018, I underestimated by 11,457
- Q1 2019, I overestimated by 4,800
- Q2 2019, I underestimated by 4,028
- Q3 2019, I overestimated by 4,012 units
My guess is, I might have overestimated UK and North America by 2K each.