that's what Waymo is doing, in their implementation of this idea the "waymo driver" is software intended to be licensed out to vehicles or vehicle chassis with applicable hardware

so if you thought the waymo car rollout was fast and sudden, wait until companies no longer need their own training data, it'll be like a switch got flipped

Tesla has also offered their FSD to other companies, with no takers: https://www.businessinsider.com/elon-musk-tesla-fsd-licensin...

However, Tesla hasn't achieved anywhere near the autonomy of Waymo, so that may be the main sticking point.