Here's the historic data on Model S+X "vehicles in transit" at end of quarter:
Quarter |
2016/Q4 |
2017/Q1 |
2017/Q2 |
2017/Q3 |
2017/Q4 |
2018/Q1 |
2018/Q2 |
[TD2]
Model S+X's "in transit"
[/TD2]
[TD2] 6,450[/TD2]
[TD2] 4,650[/TD2]
[TD2] ?[/TD2]
[TD2] 4,820[/TD2]
[TD2] 2,520[/TD2]
[TD2] 4,060[/TD2]
[TD2] 3,892[/TD2]
In that context the 3,892 S+X in transit from the end of Q2 is not particularly high - it's a bit low in fact.
Furthermore, the maximum quarterly production so far was 25,708:
Quarter |
2016/Q4 |
2017/Q1 |
2017/Q2 |
2017/Q3 |
2017/Q4 |
2018/Q1 |
2018/Q2 |
[TD2]
Model S+X production
[/TD2]
[TD2] 24,882[/TD2]
[TD2] 25,418[/TD2]
[TD2] 25,708[/TD2]
[TD2] 25,076[/TD2]
[TD2] 22,140[/TD2]
[TD2] 24,728[/TD2]
[TD2] 24,761[/TD2]
Here's the MS+X production for the first full 5 weeks of Q3:
[TD2]
MX
[/TD2][TD2]
MSX
[/TD2]
[TD2]817[/TD2][TD2]1,638[/TD2]
[TD2]1,090[/TD2][TD2]2,080[/TD2]
[TD2]1,120[/TD2][TD2]2,130[/TD2]
[TD2]1,020[/TD2][TD2]2,000[/TD2]
[TD2]1,005[/TD2][TD2]1,995[/TD2]
Together with the 275 on July 1 that's 10,118 for the first 38 days. Assuming the
maximum rate of 2,130/7 MS+X production for the remaining 54 days we get to 26,650 MS+X production for Q3. Assuming that skabooshka's rounding causes an under-counting of 5 per day on average, we can probably add 92*5 = 460 to this number - which gives a figure of 27,110.
Also note that Tesla guided 'approximately 100,000 Model S/X deliveries' for 2018, and delivered 101,420 in 2017. Their S+X deliveries in 2018 so far was 21,800 and 22,300, which is a shortfall of 5,900 up to end of Q2. If they distributed the remainder between Q3 on a half-half basis, they'd have to make and deliver 27,950 Model S+X in Q3 and Q4 as well.
Based on this data I think the 27k assumed by
@luvb2b is a good guess.
So I'd be cautious about assuming too high Model S+X production in Q3 - 30k certainly does not look realistic to me, at this stage.
(Assuming the data I've cited is correct, that is.)