That's pretty inaccurate - I think tesla said they were waiting on the fsd (full self driving) system to be finished, but tesla played up that it also depended on regulatory support - there was a ton of work before tesla finished it, it was just almost done waiting on govt approval. I can only guess that buyers thought it was coming soon, but it wasn't.
It was prepay to get it cheaper now, costs more later. Also came with hardware upgrades if any - they made a new computer, prepay people got it free. I was thinking about not getting it on my car.
