You can buy a GREAT used car with low mileage AND very low price from car rental agencies they are also maintained on a regular basis cars in CA. last forever because we have mild weather conditions, no salt on the roads ect.!!!
The warranty on the rental agency vehicles was just the manufacturers warranty minus the mileage/time on the vehicle.
I had a good experience buying my wife a 2018 Toyota Avalon with 23K miles at Hertz in Phoenix. MSRP $34,000. Lowest price I could find $31,000. I paid $20,000. Not a bad discount for one year and 23K miles. It is hard to find late model used Toyotas that WEREN’T rentals. People don’t turn them in every three years.