Does it matter? https://en.wikipedia.org/wiki/List_of_best-selling_automobil... Take a look at the USA on this chart.

True, but that is not the point. In terms of electric + self-driving technology, Tesla has a huge lead over every other auto player including Ford.

Yes. Lots of private individuals as well as fleets will pre-order trucks to get the exact options they want.

Sounds like customization. Tesla pre-order is basically a queue for a future delivery, not about getting a specific feature.

There's no need to because there are plenty. People did preorder the Focus RS.

Interesting. When did this happen? Was it discounted?

Not even a whole year ago, and, no, it wasn't discounted, it was marked up.