Not sure how things are in the States, but over here in Europe when I search for an electric vehicle in the 4,000-6,000 euro range [1] I get mostly just toy cars (i.e. the Renault Twizy). And low-income people generally go for 2,000-3,000 euro cars, even lower. Maybe things are better for this class of people in the States and they can afford to purchase used EVs with starting prices of $10,000 or $15,000, can't tell.

[1] https://suchen.mobile.de/fahrzeuge/search.html?damageUnrepai...