Battery-powered vehicles will have to be put on the market by car-rental companies a lot quicker than they do ICE vehicles.
Batteries start to lose capabilities for holding charges after about a year, which means that, the company will be selling those vehicles a lot sooner than their ICE cars. And, ‘re-fueling’ an EV after the battery dies, will cost 5-20 thousand dollars, if one were to want to keep that car. I’m thinking that not too many will want to buy a used EV after 3 years of usage on the battery; so, to the used-car sales lots they go, and good luck to those that purchase them.
CDs will never replace cassettes, because CDs wear out eventually and cassettes don't.
Rental companies offload their used inventory as they approach the end of their manufacturer warranty, which varies by maker, but it ain't 100s of 1000s of miles.
In the article linked down below, "Tesla now covers all battery capacity degradation in all its vehicles with a limit of 70% capacity for up to 8 years or 100,000 to 150,000 miles depending on the model... However, this Model X got a battery replacement under warranty at 317,000 miles."
A look at Tesla battery degradation and replacement in a Model X with 400,000 miles. Read the article on Electrek.Tesla battery degradation and replacement after 400,000 miles | June 6, 2020 | Electrek.co