The absolute best work on this can be found by
@Troy . I know he is not always appreciated on this forum due to his style, but you can't fault his work. It is meticuously sourced, transparant and links to all data and sources he uses.
See here. He has Tesla at 180762 at the end of last quarter. But he includes eligable roadsters (delivered after 2010). That's close enough to your number that it is in the margin of error. Let's assume a very conservate 200 roadsters and then take the average between two. 179306 agree?.
Next more unkowns. For Model 3 in April/May, the Tesla slide from the meeting is a much better source than inside-ev. Agree? Again outstanding work to be found
here. Includes methodology that I can't fault at all. Please let me know on what part of the methodology you disagree. Otherwise 10610 it is for me.
Tesla is still delivering Model 3's in June in the US. Troy lists 243 confirmed deliveries for the month (that's opposed to 681 for May). If the sample rate is the same this alone is evidence for over 2000 US based Model 3 deliveries in June. Round down to 2000. And note, this number can only go up from here.
For Model S/X we don't know. Yes there is insideEV but they regularly fudge up the numbers. But we know that Tesla did NOT shift cars to non-domestic markets. Average waiting times in China nor Europe did not go down (as one would expect) nor did average waiting times go up in the States. In fact even in May you could still order a car and have it delivered this quarter. Tesla also happily continues to sell inventory.
And no,
@luvb2b pointing to the online availability is a BIG mistake here that you continue to make, please visit any showroom or just read the threads on the forum. In fact, I track overall production and deliveries as reported by Tesla in the shareholder letters. At the end of Q1, Tesla had produced 12053 more S/X than reported deliveries. With 4060 cars in transit this leaves a pool of nearly 8000 cars used in loaner and inventory duty. Walk into any sales center today, trust me you CAN buy those cars.
So all in all, I see NO indication of Tesla shuffling cars to non-domestic markets. Yes, there is some talk of smoothing the end-of-quarter push. but the net effect of that happened on the Q1/Q2 transition : read the Q1 delivery 10-K from April 3rd. If there is no indication that 2018Q2 is anything special, let's look at what S/X deliveries did last year : 11600.
Adding it all together : 179306 + 10610 + 2000 + 11600 = 203516. It's still possible, but Tesla needs to put a hard stop right about now on assigning deliveries in June to stay under the 200k.