I ordered a Long-Range RWD Model 3 last week. Today I contacted the local Tesla showroom to see if they have any demo models of my car that I can buy now for a demo discount. They wrote back that they have some Model 3's in my color choice that are on their way here, but they all have AWD, and they haven't been driven at all yet so there would be no discount. He referred to them as "rapid delivery vehicles." I decided to pass because I live in a warm climate and don't want to spend the extra money on AWD. But it got me wondering what a "rapid delivery vehicle" is,and how is it different from ordering and waiting, like (I thought) everyone had to do?