I just ran the numbers on a 2023 Chevy Bolt EUV base model and an 8 year old Honda Fit with 81,000 miles at a "Good Price" on Autotrader. So an old, high mileage car that is likely to need a fair bit of maintenance if kept and driven for 10 more years:
Bolt EUV:
$30,523 out the door at MSRP
-$7500 tax credit
-$2,000 state tax credit(some higher, some lower, this is for PA)
$21,023 net cost
Honda Fit $14,840 net cost. So we have a net price difference of $6183 that I will use for opportunity cost.
Assume 15,000 miles/year, gas @ $3.75/gallon, Honda 36 mpg combined, rated at 33/40. Electric @ 0.10/kWh
$150/year for oil changes and NO OTHER MAINTENANCE AT ALL i.e. brakes, timing belt/chain, or major engine/transmission/exhuast repair etc. i.e. absolute best possible magical thinking scenario(sorry, couldn't resist)
Honda Fit 10 year $31,960
Bolt EUV 10 year $30,750. This includes the opportunity cost of the additional $6,183 in net purchase cost of the Bolt @ 7% interest over 10 years.
Now let's assume the Bolt will replace the brakes FAR less frequently than the Honda that already has over 80,000 miles and will end up at 230,00 miles.
Looks to me like it's easy to imagine a scenario is similar with one of the smallest, cheapest, old, high mileage used cars vs a brand new Bolt EUV.
If someone has solar, the 10 year TCO of the Bolt comes out even further ahead. If someone has off peak super cheap electric rates, even cheaper.
I acknowledge there are scenarios where either car could come out ahead such as driving super low miles, super high electric rates, etc etc. But based on a *reasonable* comparison, at worst, it seems pretty close financially. However, the added benefit is that one option isn't burning gas and oil for 10 years.