That's still depreciation, just deprecation until it dies (down to near $0 value from new) vs depreciation until you sell it. If it dies fast, the depreciation is still high.

Yeah, but it doesn't die fast. Re-sale value is low because of the competition from newer models due to rapidly developing tech.

How many years/miles does the average new ev last and how much does it cost to own/operate for that time.

How many years/miles does the average new ice cost and how much does it cost to own/operate.

I tend to buy the bottom of the market. My last cost £1100 and has lasted 3 years/9k miles so far and seems reasonable.

I didn’t buy electric because they are far more expensive. That’s seems to be at odds with the claim they deprecate more.

There are 57 electric cars under 3k for sale and 30,000 petrol ones on auto trader.

At any price the ratio is about 10:1 rather than 600:1.

Second hand EVs are more expensive than second hand petrol cars.

Your arbitrary choice of a $3K price ceiling is skewing your interpretation of the data; cars at this price point are essentially scrap. Also, cars don't just get "used up", they get very expensive to maintain and keep operational. You might be able to find an ICE car in your price range that has a lot of things wrong with it but you can keep it going with the minimum, while for EVs basic operation is dependent on only a few, very expensive systems.

I chose that as roughly double the cost of the car I bought 3 years ago which has needed some new tyres, wipers, and a battery since then, hardly “scrap”