But if you think about it, most of that ML model training will be done with telemetry from Rivian-built AWS delivery vehicles: they drive more consistently and for longer periods than random Rivian vehicle owners.
Which is an interesting synergy: Rivian builds the vans, which Amazon drives, generating data which goes into Rivian ML models, trained on AWS compute, enabling eventual Rivian FSD, so AWS can one day remove human drivers from its fleet.