While the Herz fleet being sold is definitely impacting Tesla resale prices specifically, I think the larger impact is ICE vs EV resale in general. An ICE car from 5 years ago is not all that different than a new one today, mechanically speaking. 5 years in the EV world is a very long time. A new model will come with longer range and faster charging that was not feasible 5 years ago. So a brand that only sells EVs is going to suffer a bit more in studies like these.