Your numbers are no longer accurate in the current used car market... Look up the values of used vehicles on one of the valuations sites and compare them to the cost of new vehicles. Most types of vehicles make it to more than 200,000 miles these days. My wife and I are still driving our 2001 Astrovan which has 225,000 miles and has never had any major work done.
I was just throwing numbers out there as an example. Your mileage may vary, of course. My point, though, was that the typical car buyer has enough experience with gasoline-powered cars to have at least a rough idea how to value used cars. With EVs, it’s more like a black box. Few really have a grasp of how long EV batteries will last or how much repairs/replacement will cost
We have a 1998 SUV. Five years ago the blue book value was $1200. Two years ago, the value was up to $1500. Today, the 1998 SUV value is $2000.
I sold my 2006 Pontiac Vibe a few years back. 290,000 miles. A wheel bearing was the only real repair. Clutch was starting to slip when I sold it.