There's a tax credit in the Netherlands that phases out at the end of the year. Prioritizing delivery to the Netherlands will be greatly appreciated by those who can take advantage.
Tesla isn't hiding the fact, that production for oversea customers is done in the first month of a quarter, so the cars can be delivered in that quarter. Easy to imagine what the reporting would be, if they had large amounts of "unsold" cars in transit at the and of a quarter.
15,000 units in delivery in Q1 was part of the reason why Q1 was so bad for them.
They’ve said they would like to smooth out the delivery timing, and eliminate the dedicated delivery phase but I don’t see how that happens until you have more geographically distributed production (EU GF4 in 2021).