The first NA customer' cars won't be arriving until Q3 of next year at the earliest. This information according to my SA came from HQ, which is why there was a big fuss about preconfigs and allocating them to VIP clients.
The good news is that if the preconfigs cars arrive by the end of this year, the ROFRs will expire by the time the first customer cars arrive, so resale values for the preconfigs will be strong.